The BEST episodes of The Alienist season 1

Every episode of The Alienist season 1, ranked from best to worst by thousands of votes from fans of the show. The best episodes of The Alienist season 1!

Crime reporter, John Moore meets with psychologist, Dr. Laszlo Kreizler to investigate a serial killer in New York during the late 19th century.

Last Updated: 11/11/2024Network: TNT (US)Status: Ended
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Requiem
star
7.99
1205 votes

#1 - Requiem

Season 1 - Episode 9 - Aired 3/19/2018

Kreizler mourns the loss of a friend. Sara pushes the team to forge ahead. Moore warns his friend the killer will strike again. Cyrus seeks revenge.

Directors: Jamie Payne
Watch Now:Amazon
Psychopathia Sexualis
star
7.94
1184 votes

#2 - Psychopathia Sexualis

Season 1 - Episode 8 - Aired 3/12/2018

Kreizler and Moore travel to Washington D.C., Sara goes rogue in pursuit of the truth. Lucius tells Marcus a secret. Byrnes and Connor tighten their grip on the investigation.

Directors: David Petrarca
Writer: John Sayles
Watch Now:Amazon
Ascension
star
7.76
1236 votes

#3 - Ascension

Season 1 - Episode 6 - Aired 2/26/2018

The team hatches a plan to catch the killer. Moore checks in on a friend. Kreizler faces his own self-doubt about the investigation. Roosevelt attends an event with the city’s elite. Sara looks into Kreizler’s past. Connor acts on impulse.

Directors: Paco Cabezas
Writer: E. Max Frye
Watch Now:Amazon
Castle in the Sky
star
7.74
1181 votes

#4 - Castle in the Sky

Season 1 - Episode 10 - Aired 3/26/2018

Kreizler confronts the demons of his past. Moore tells Sara the truth. Connor takes matters into his own hands. The team closes in on the killer as time is running out.

Directors: Jamie Payne
Watch Now:Amazon
These Bloody Thoughts
star
7.69
1332 votes

#5 - These Bloody Thoughts

Season 1 - Episode 4 - Aired 2/12/2018

Kreizler and Sara discuss the capacity to kill. Moore goes on a date. Byrnes and Captain Connor keep an eye on a potential suspect. Roosevelt finds himself under public scrutiny.

Directors: James Hawes
Watch Now:Amazon
Hildebrandt's Starling
star
7.61
1255 votes

#6 - Hildebrandt's Starling

Season 1 - Episode 5 - Aired 2/19/2018

The team learns more about the killer. Moore and Sara share an intimate moment. Kreizler seeks advice from an old mentor. Roosevelt takes action.

Directors: James Hawes
Writer: E. Max Frye
Watch Now:Amazon
Silver Smile
star
7.59
1368 votes

#7 - Silver Smile

Season 1 - Episode 3 - Aired 2/5/2018

Innovative evidence leads the team to discover a crucial element in the case has gone missing. Kreizler and Moore interview a witness to find out what happened to Moore at the Brothel. Sara attempts to live in a world outside the investigation. Kreizler challenges them to look within themselves.

Directors: Jakob Verbruggen
Watch Now:Amazon
Many Sainted Men
star
7.51
1226 votes

#8 - Many Sainted Men

Season 1 - Episode 7 - Aired 3/5/2018

Kreizler and Moore follow a lead. Sara visits a hospital and is forced to confront her past. Cyrus, Kreizler’s carriage driver, recovers from his injuries. Byrnes and Connor plot against the team.

Directors: Paco Cabezas
Writer: John Sayles
Watch Now:Amazon
A Fruitful Partnership
star
7.49
1519 votes

#9 - A Fruitful Partnership

Season 1 - Episode 2 - Aired 1/29/2018

Sara finds a clue and Kreizler tries to connect the evidence left behind by the serial killer. Kreizler takes Moore, Sara, Marcus and Lucius to Delmonico's in New York and informs them they're working together to catch the killer.

Directors: Jakob Verbruggen
Watch Now:Amazon
The Boy on the Bridge
star
7.44
2077 votes

#10 - The Boy on the Bridge

Season 1 - Episode 1 - Aired 1/22/2018

New York City. 1896. The heart of America’s Gilded Age. When a young boy prostitute is found butchered on the unfinished Williamsburg Bridge, an alienist named Laszlo Kreizler, a newspaper illustrator by the name of John Moore, a secretary, Sara Howard and a police commissioner named Theodore Roosevelt begin an investigation outside the law to find the serial killer.

Directors: Jakob Verbruggen
Watch Now:Amazon