The BEST OCN shows of all time

Every OCN show, ranked

We've compiled the average episode rating for every OCN show to compile this list of best shows!

Vampire Prosecutor
star
8.91
105 votes

#1 - Vampire Prosecutor

Min Tae Yeon (Yun Jung Hoon) isn't your typical vampire or your typical prosecutor. Rather than drinking blood from innocent strangers, he opts for blood sold on the black market in the posh bars of Seoul. He also has the uncanny ability to tell where the victim of his cases died, and how they died based on their blood's smell and taste. The only person who knows of his secret ability is Detective Hwang Soon Bum (Lee Won Jong). They end up working together in a new joint department between police and prosecutors solving murder cases. They are joined by rookie prosecutor Yoo Jung In (Lee Young Ah), and intern Cho Dong Man. Together, they solve murder cases, and Tae Yeon must use his "powers" to find leads on seemingly unsolvable cases. The one mystery he can't solve is: who was the vampire/serial killer that changed him seven years ago?

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Longing Heart
star
8.72
61 votes

#2 - Longing Heart

Kang Shin-Woo is a math teacher with a good looking appearance. He has not forgotten his first love Han Ji-Soo for the past 10 years. By an accident, he travels to the past when he was a high school student. There, he meets his younger self. Kang Shin-Woo struggles to make the younger Kang Shin-Woo's love come true.

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Bad Guys
star
8.68
293 votes

#3 - Bad Guys

Ordered to take down a villainous business leader who controls the city, a prosecutor gathers a team of men who may not be so clean themselves.

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Squad 38
star
8.58
113 votes

#4 - Squad 38

Can you beat criminals at their own game? Baek Sung-il is a tax collector who is frustrated by the wealthy using all kinds of deceitful practices to get around Article 38, which governs tax payments. To beat them at their own game, Sung-il assembles a special task force composed of law enforcement and criminals to nab rich people who try to avoid paying taxes. He recruits conman Yang Jung-do and civil servant Chun Sung-hee to join the task force, along with ex-thieves Noh Bang-sil and Jang Hak-joo. Together, no tactic - from insurance and real estate scams, fake antiques, voice phishing and pharming - is beyond their means go after wealthy tax evaders.

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Ghost-Seeing Detective Cheo-Yong
star
8.47
128 votes

#5 - Ghost-Seeing Detective Cheo-Yong

Yoon Cheo-yong is a detective who has been able to see and hear ghosts since the day he was born. He solves mysterious cases along with another detective, Ha Sun-woo and the ghost of a high school student, Han Na-young.

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Life on Mars (KR)
star
8.40
76 votes

#6 - Life on Mars (KR)

While investigating a serial murder case, Han Tae Joo gets into an incident. When he wakes up, he finds himself back in 1987. To get back to his present world, he must solve the murder case.

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Missing Noir M
star
8.40
63 votes

#7 - Missing Noir M

Gil Soo-Hyun is extremely intelligent. At the age of 10, he attended Harvard University. After graduating there, he decided to work at the FBI and worked there for 10 years. Afterwards, he decided to come back to South Korea. He now works as the leader of the Special Missing Persons Unit. The unit deals with about 1% of special missing cases involving violent crimes. His appearance borders on perfection, but he holds a secret. Detective Oh Dae-Young joins the Special Missing Persons Unit. He has worked as a detective for 20 years and he has an obsession in observing the law. He is known as a master of missing person cases.

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The Uncanny Counter
star
8.35
463 votes

#8 - The Uncanny Counter

Noodle shop employees by day and demon hunters by night, the Counters use special abilities to chase down malevolent spirits that prey on humans.

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The Guest
star
8.33
165 votes

#9 - The Guest

Bound together by a tragic past, a psychic, a priest and a detective join forces to take down a powerful spirit that's driven by bloodthirst.

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Class of Lies (2019)
star
8.24
49 votes

#10 - Class of Lies (2019)

A high-winning rate lawyer his reputation hits rock bottom due to a murder case at a high school he deals with. In order to regain his good name as a lawyer, he sneaks into the high school and begins to work as a temporary teacher.

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Tunnel
star
8.22
340 votes

#11 - Tunnel

The story of a detective who accidentally travels from the past to the present. He goes from walking along the ridges of rice paddies for clues in 1986, straight into 2016. Wherever he goes, he causes trouble and creates problems, but his antics are funny and bizarre because he is an old-fashioned detective from the past trying to adjust to life in modern day.

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Save Me (KR)
star
8.22
228 votes

#12 - Save Me (KR)

A young girl coming to a small town with her family. And through tragic events getting involved with a religious cult.

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Strangers From Hell
star
8.21
352 votes

#13 - Strangers From Hell

Unpleasant events disturb the life of an aspiring crime fiction writer when he becomes a resident of an apartment building teeming with shady neighbors.

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Missing: The Other Side
star
8.09
45 votes

#14 - Missing: The Other Side

A mystery thriller based in a mysterious village where a spirits live, and follows the cases that occur there, and the truths behind them.

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BLACK
star
7.91
616 votes

#15 - BLACK

The story of a grim reaper who gets erased from the memories of the world for breaking the rules of heaven and falling in love with a mortal woman after inhabiting a human body. Black is a detective possessed by the Grim Reaper. Ha-Ram can see shadows of death. These two struggle to save the lives of people, breaking the rules of heaven.

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Duel
star
7.83
127 votes

#16 - Duel

Jang Deuk Cheon is the chief of the crime squad. He is a kind, caring and friendly father to his young daughter. It’s a tough job and he comes from an equally dangerous past, but he never lets his family hear it. It’s the dream life, until the chief’s daughter is kidnapped. And after trying to get her back, Jang Deuk Cheon sees that one man is always involved. Actually, make that “two men.” Sung Joon is the mysterious man somehow connected to the disappearance of Jang Deuk Cheon’s daughter. Sung Hoon is his clone. Or is Sung Hoon the original and Sung Joon the clone? Or are they both clones? Are they both real? And why do they have contrasting personalities? Why is one calm and collected while committing murder while the other is literally terrified of his own shadow? All these questions don’t matter to Jang Deuk Cheon. What matters is finding his daughter. Whether that means getting through one clone or two, he will do it. But as the detective soon learns, things aren’t that simple. While one clone is a murderous psychopath that removes organs from his victims, the other is a kind soul. And both of them need each other to survive. Now it’s a battle between the forces of good and evil, and a man and his daughter are caught in the middle of the most dangerous kind of duel.

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Dr. Frost
star
7.75
56 votes

#17 - Dr. Frost

Baek Nam Bong (Song Chang Ui) is known as Dr. Frost. He became a professor in psychology at early age. He is extremely bright, but he has difficulties sympathizing with others due to an injury to his frontal lobe as a child. During the day, he now works as a counselor at the campus counseling center and at night he works as a bartender. He then begins to work with a teaching assistant, Yoon Sung Ah (Jung Eun Chae) at the counseling center. Yoon Sung Ah is enthusiastic with the clients needing counseling. They work together to solve problems who go there for help.

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Kill It
star
7.70
110 votes

#18 - Kill It

A killer who became a veterinarian while keeping his past and a detective chasing a serial murder case.

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The Virus
star
7.63
76 votes

#19 - The Virus

This drama centers around the scientists at the ‘special infectious disease crisis response team‘ lead by Lee Myung Hyun, who investigate a mysterious infection case where the virus has a 100% fatality rate.

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The Player
star
7.58
52 votes

#20 - The Player

A crime proceeds redemption team consists of a smart swindler, a fighter, a hacker, and a driver. The crime proceeds redemption team attempts to take back property hidden away by criminals.

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Priest (2018)
star
7.57
30 votes

#21 - Priest (2018)

Oh Soo-Min is a dutiful young Catholic priest, filled with energy. He is a member 643 Regia. The group performs exorcisms unofficially. In the past, his own mother was possessed by a devil. She could not receive an exorcism and she consequently died. After that, Oh Soo-Min was taught by Priest Moon Ki-Sun on how to perform exorcisms. Moon Ki-Sun is the person who formed 643 Regia. Meanwhile, Ham Eun-Ho became a doctor after her family went through an unfortunate accident. She wants to save the lives of people. Now, Ham Eun-Ho works in the emergency room of a hospital. Ham Eun-Ho does not believe in God, but she witnesses a supernatural phenomenon and meets Priest Oh Soo-Min. She faces a big change in her life.

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Tell Me What You Saw
star
7.55
57 votes

#22 - Tell Me What You Saw

Oh Hyun Jae used to be a top criminal profiler. He solved many cases with his skills, but an explosion, caused by a serial killer, ended the life of his fiancé. After the horrific incident, Oh Hyun Jae vanished and he now lives in seclusion. Meanwhile, Cha Soo Young is a police officer in a rural area. She has a special ability, which allows her to remember everything that she saw. Due to her special ability, she is selected as a rookie detective who will partner with Oh Hyun Jae informally.

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WATCHER
star
7.44
49 votes

#23 - WATCHER

The lives of Do Chi-Gwang, Kim Young-Koon and Han Tae-Joo were destroyed by a tragic affair. They became members of an internal affairs investigation team for the police and they try to dig up the truth on who is behind the tragic affair.

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My Secret Romance
star
7.25
467 votes

#24 - My Secret Romance

Cha Jin-Wook is a son from a wealthy family. His family runs a large company. Cha Jin-Wook only pursues short term love. He meets Lee Yoo-Mi and changes. Lee Yoo-Mi has never had a boyfriend before.

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Neighborhood’s Hero
star
7.20
51 votes

#25 - Neighborhood’s Hero

Baek Shi-Yoon is an ex-secret agent. He is a well-trained human weapon. Hiding his past, he buys the bar "Neighborhood" and runs it is as the owner. He gets close to the neighborhood regulars at his bar and sympathizes with their pain. Baek Shi-Yoon meets a young man who works as a temporary employee. The young wants to become a police officer. Baek Shi-Yoon trains the young man as a secret agent and they fight together against evil.

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Train
star
7.13
88 votes

#26 - Train

A man lost a precious person because of a serial killer. He crosses over into a different world to figure out the truth behind her death.

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Vampire Detective
star
7.13
74 votes

#27 - Vampire Detective

Private detective Yoon San gets turned into a vampire one day while he was out on a duty. As he meets various clients and cracks cases for them, he also uncovers the mystery surrounding him as well as the secrets from his past.

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Possessed (2019)
star
7.10
71 votes

#28 - Possessed (2019)

While Kang Pil-Sung, whose instincts as a detective are excellent, investigates a case, he happens to meet Hong Seo-Jung, a woman with excellent psychic mediumship. Kang Pil-Sung feels that she is different from others and takes an interest in her. They begin to solve cases together using their special abilities.

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Dark Hole
star
7.08
60 votes

#29 - Dark Hole

A creature action thriller series about the desperate survival of the survivors among the mutant humans who drank a mysterious black smoke from the sinkhole and soon turned into monsters and quickly became a pandemonium.

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Search (2020)
star
6.92
52 votes

#30 - Search (2020)

A specialized search party forms to uncover the truth behind mysterious disappearance and murder cases.

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Chimera
star
6.75
40 votes

#31 - Chimera

Chimera incident, a serial murder and explosion crime that shook the year of 1984, takes place exactly the same thirty five years later in 2019. Just like the terrible explosion in the past, the murder of the crime is called Chimera, a monster in the Greek myth with the head of a lion, body as a goat, and tail as a snake that shoots fire through its throat.

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Rugal
star
6.71
118 votes

#32 - Rugal

A police detective who loses everything to a criminal organization seeks playback when he gains special abilities through biotechnology.

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That Man Oh Soo
star
6.42
57 votes

#33 - That Man Oh Soo

Oh Soo is a man in his 20's and works as a promising engineer in the IT field, a cafe owner and a barista. He is smart and handsome. He plays cupid for young men and women by using a mysterious pollen. Due to the pollen, he falls in love with Seo Yoo-Ri. She is also in her 20's and works as a police officer. She has a bright personality and supports her family by herself.

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Meloholic
star
6.37
38 votes

#34 - Meloholic

Yoo Eun-Ho has a special ability which allows him to read the minds of other people when he places his hand on them. Due to his special ability, he can't open his mind to anyone. One day, he meets Choo Ji-Eun. He is able to discern that what she says is actually what she thinks, but he also learns that she has two different personalities.

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The Lies Within
star
0.00
0 votes

#35 - The Lies Within

“The Lies Within” is about a woman whose husband disappears after the sudden death of her father. She joins the National Assembly and teams up with a detective in her search for the truth. The two characters work together to break through the silence and lies that people spill to protect their own interests.

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