The BEST Episodes of Masters of Sex

Every episode ever - ranked by fan votes!

Last Updated: Oct 2, 2021

Network: Showtime

The series chronicles the unusual lives, romance and pop culture trajectory of William Masters and Virginia Johnson. Their research touched off the sexual revolution and took them from a mid-western teaching hospital in St. Louis to the cover of Time magazine.

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#1 - Catherine

Season 1 - Episode 5 - Aired Oct 27, 2013

When Masters and Johnson expand the study to include couples, they discover that the science of sex is easily complicated by the mystery of attraction. Johnson tries to connect with her son who prefers his dad. In anticipation of his baby’s impending arrival, Masters experiences anxiety about becoming a father. And Dr. Ethan Haas learns that dating the provost’s daughter could impact his medical career.

star 7.93
1,829 votes
Directors: Michael Apted
Writers: Michelle Ashford, Sam Shaw

#2 - Manhigh

Season 1 - Episode 12 - Aired Dec 15, 2013

Masters’ work on human sexuality culminates with a hospital-wide presentation of his and Johnson’s research findings. But when Masters attempts to push the envelope with the external footage of the female orgasm, the doctors’ response to the film is not what he had hoped. Meanwhile, Haas entertains a job offer at UCLA Hospital and considers what a move would mean for his relationship with Virginia. Scully pursues electroshock treatment with the hope of curing his homosexuality but Margaret has second thoughts about the risks involved.

star 7.92
1,284 votes
Directors: Michael Dinner
Writers: Michelle Ashford
Brave New World

#3 - Brave New World

Season 1 - Episode 6 - Aired Nov 3, 2013

In the aftermath of the miscarriage, Libby and Masters travel to Miami for some much needed rest and relaxation, but Masters is drawn back into his work by a sexually adventurous couple next door. Alone in the hospital, Virginia enlists Jane in an effort to debunk Freud’s theory that one kind of female orgasm is better than another. And Langham finds an unlikely cure for his sexual dysfunction in Margaret Scully.

star 7.89
1,678 votes
Directors: Adam Davidson
Writers: Lynnie Greene, Richard Levine
Coats or Keys

#4 - Coats or Keys

Season 4 - Episode 4 - Aired Oct 2, 2016

Johnson, Masters, Libby and Keller wind up together at a party thrown by Art and Nancy. Pairings and perspectives shift as the night wears on, until the light of day exposes the consequences of the evening.

star 7.89
666 votes
Directors: Colin Bucksey
Writers: Amy Lippman
All Together Now

#5 - All Together Now

Season 1 - Episode 7 - Aired Nov 10, 2013

Masters and Johnson continue their sexual response study – now as participants – but Johnson fears their work may be interfering with Masters’ home life. Libby pressures Dr. Haas to resume her fertility treatments in secret. Meanwhile, Haas struggles to let go of feelings for Virginia as his relationship with Vivian deepens. And Margaret Scully, caught in her infidelity, confronts her husband on the mounting problems in their marriage.

star 7.87
1,584 votes
Directors: Tim Fywell
Writers: Tyler Bensinger

#6 - Topeka

Season 4 - Episode 8 - Aired Oct 30, 2016

Masters and Johnson go on the road and pose as a couple to investigate practices at a competing clinic. While Bill and Virginia are away, Art, Nancy and Langham take advantage of their absence to further their own agendas.

star 7.86
650 votes
Writers: Esta Spalding

#7 - Involuntary

Season 1 - Episode 9 - Aired Nov 24, 2013

When Masters and Johnson decide to film external reactions in the study, they must convince Lester and Jane that their footage won’t cross the line into pornography. Haas and Vivian’s plans for a Presbyterian church wedding are sidetracked when Haas reveals he’s Jewish. Libby keeps her pregnancy a secret from Masters and instead encourages him to mend his relationship with his mother. But during late night visits to the hospital, Estabrooks observes Masters and Johnson’s intimate relationship.

star 7.83
1,474 votes
Writers: Noelle Valdivia
Love and Marriage

#8 - Love and Marriage

Season 1 - Episode 8 - Aired Nov 17, 2013

Masters and Johnson decide that the best way to record their study findings is to film them, but to do so they have to enlist outside help. Johnson redoubles her efforts to get a college degree, only to find that Dr. DePaul’s Basic Anatomy class is a requirement. Meanwhile, Haas and Langham – both unsure in their relationships – convince each other of the merits of being a married man. And after Margaret catches him in a compromising position, Scully takes drastic steps to control his sexual impulses.

star 7.79
1,529 votes
Directors: Michael Apted
Writers: Michael Cunningham, Tyler Bensinger
Family Only

#9 - Family Only

Season 4 - Episode 6 - Aired Oct 16, 2016

Johnson looks to get her relationship with Masters back on track while Masters does his best to find satisfaction elsewhere. Betty and Helen ready themselves for a new addition; Art and Nancy discuss the consequences of their party.

star 7.78
679 votes
Directors: Colin Bucksey
Writers: Seth Fisher

#10 - Outliers

Season 4 - Episode 5 - Aired Oct 9, 2016

Johnson and Masters' troubles come to a head as the trial begins with Keller leading the charge. Virginia does her best to revive their career as Bill faces the reality of what the charges could mean for him, Johnson and the practice.

star 7.77
671 votes
Directors: Eric Tignini
Writers: Esta Spalding

#11 - Pilot

Season 1 - Episode 1 - Aired Sep 29, 2013

Dr. William Masters, Washington University’s foremost OB/GYN, runs a successful medical practice by day and conducts a secret study of human sexuality by night. Former nightclub singer Virginia Johnson joins the hospital secretarial staff and proves herself to be an asset to Masters’ work.

star 7.76
2,957 votes
Directors: John Madden
Writers: Michelle Ashford
Full Ten Count

#12 - Full Ten Count

Season 3 - Episode 12 - Aired Sep 27, 2015

On the heels of their disastrous dinner in New York, Masters and Johnson return to find their life's work in jeopardy while under the scrutiny of the press and their publisher in preparation for their new book.

star 7.75
702 votes
Directors: Michael Apted
Writers: Michelle Ashford
Phallic Victories

#13 - Phallic Victories

Season 1 - Episode 11 - Aired Dec 8, 2013

With Johnson no longer on his team, Masters accepts Libby’s offer to help compile the study work for a hospital-wide presentation. But when Masters sees another doctor’s presentation put his colleagues to sleep, he becomes determined to grab their attention even if it means pushing through provoking, but incomplete, research. Dr. DePaul and Johnson travel to a medical convention and DePaul opens up on why her work on the Pap smear is so important. And Virginia’s ex-husband George returns to find Ethan Haas playing father to his children.

star 7.74
1,334 votes
Directors: Phil Abraham
Writers: Amy Lippman
Thank You for Coming

#14 - Thank You for Coming

Season 1 - Episode 4 - Aired Oct 20, 2013

With the study back in the hospital, Masters and Johnson recruit new participants on campus. But Johnson is shocked when her ex-husband George, who’s crashing on her couch, wants to sign up. Masters’ mother comes to visit, but her new take on life stirs up painful memories of his childhood. And Libby’s attempt at playing matchmaker with Virginia and Ethan doesn’t go as smoothly as she’d hoped.

star 7.73
1,884 votes
Writers: Amy Lippman
Standard Deviation

#15 - Standard Deviation

Season 1 - Episode 3 - Aired Oct 13, 2013

Masters and Johnson continue their research in the brothel but skewed data confirms that Masters must get the study back into the hospital. At the hospital, Johnson is surprised to learn that a distinguished new doctor on the OB/GYN floor is a woman who has no interest in female solidarity. Meanwhile, Libby struggles to conceive and Dr. Ethan Haas gets the case of a lifetime – a woman pregnant with quadruplets.

star 7.71
2,181 votes
Writers: Sam Shaw
Parliament of Owls

#16 - Parliament of Owls

Season 3 - Episode 1 - Aired Jul 12, 2015

Masters and Johnson face the press for the first time.

star 7.68
818 votes
Directors: Jeremy Webb
Writers: Michelle Ashford
Race to Space

#17 - Race to Space

Season 1 - Episode 2 - Aired Oct 6, 2013

On the heels of Masters’ proposal that they participate in the sexual response study, Johnson considers the best course of action to keep her job – only to find she no longer has one. The study has been forced out of the hospital and Masters believes Johnson is to blame. As Johnson fights to save her job and struggles to care for her kids, Masters moves his study to a brothel. But Masters soon discovers that the chaos of the cathouse is unmanageable without Johnson’s help.

star 7.67
2,387 votes
Directors: Michael Dinner
Writers: Michelle Ashford
The Eyes of God

#18 - The Eyes of God

Season 4 - Episode 10 - Aired Nov 13, 2016

Masters and Johnson work to save the practice from disintegrating in the face of insurrection within the clinic. As everyone in their lives either moves on or falls away, Bill and Virginia find solace in one another. Series finale.

star 7.67
672 votes
Directors: Michael Apted
Writers: Michelle Ashford

#19 - Blackbird

Season 2 - Episode 6 - Aired Aug 17, 2014

After Hendricks bans Masters from using black participants in his study, Masters contacts a journalist to promote his efforts, using the debunking of sexual stereotypes as the lure. Johnson is forced to accept DePaul's choice to end her chemotherapy treatments. Gene uncovers the truth about Betty and Helen's relationship. Libby fires Coral after discovering she lied about Robert.

star 7.65
974 votes
Directors: Keith Gordon
Writers: Eileen Myers

#20 - Fight

Season 2 - Episode 3 - Aired Jul 27, 2014

Masters delivers a baby with ambiguous genitalia and urges the parents not to surgically assign the child a sex out of fear or convenience. Meeting Virginia at a hotel for a secret rendezvous, the two of them divide their attention between sexual role-play and a championship boxing match, prompting Virginia to unearth the truth of Masters'' troubled childhood.

star 7.64
1,163 votes
Directors: Michael Apted
Writers: Amy Lippman
Story of My Life

#21 - Story of My Life

Season 2 - Episode 9 - Aired Sep 7, 2014

Virginia continues to impersonate a patient's case history in order to glean advice from a psychiatrist. Betty and Masters' attempt to remedy Lester's impotence by hiring a prostitute rattles him even further. Libby gets the third degree when she offers her eyewitness testimony regarding the beaten man. And Barbara Sanders wrestles with an unsettling diagnosis that exposes a chain of secrets and causes Masters and Johnson to clash over their treatment strategy.

star 7.64
852 votes
Directors: Jeremy Webb
Writers: Amy Lippman

#22 - Asterion

Season 2 - Episode 7 - Aired Aug 24, 2014

In the wake of Masters' discovery that Johnson has continued to have romantic relationships with other men, he becomes impotent without her knowledge and cuts off their sexual work together. He tries to keep his new clinic solvent over the course of three years by borrowing against his house, offering medical services to the hotel - and finally accepting money from his mother.

star 7.64
969 votes
Directors: Michael Dinner
Writers: David Flebotte, Michelle Ashford
Party of Four

#23 - Party of Four

Season 3 - Episode 11 - Aired Sep 20, 2015

Masters, Johnson, Logan and his wife gather in New York for a dinner in which agendas collide, truths are exposed and no relationship emerges unscathed. Back home, Libby faces an accusation that threatens her family's foundation.

star 7.61
632 votes
Directors: Susanna White
Writers: Amy Lippman

#24 - Fallout

Season 1 - Episode 10 - Aired Dec 1, 2013

The hospital takes part in a nationwide civil defense drill, and the heightened atmosphere escalates conflicts among the staff. A former study participant reveals she’s pregnant and wants to know the identity of the father. Masters and Johnson, their relationship strained after ending their study participation, butt heads on whether to maintain study confidentiality or take responsibility. Haas learns he’s been denied a future job at the hospital but wrongly assumes his breakup with Vivian is to blame. Margaret Scully seeks answers about her husband’s sexuality from an unlikely source.

star 7.60
1,426 votes
Writers: Sam Shaw
The Revolution Will Not Be Televised

#25 - The Revolution Will Not Be Televised

Season 2 - Episode 12 - Aired Sep 28, 2014

After watching an early cut of the documentary, Masters is disturbed by the portrayal of his work. Johnson's move to solidify her custody arrangement with George backfires. Finding justification in Masters' distraction, Libby continues her relationship with Robert. Langham discovers Flo's family's wealth and connections, causing him to re-evaluate his relationship with her. And after repeated testing of their protocol to cure impotence, Masters and Johnson feel they are ready to cure sexual dysfunction.

star 7.60
876 votes
Directors: Adam Arkin
Writers: Michelle Ashford