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The Worst Episodes of Masters of Sex

Every episode of Masters of Sex ranked from worst to best. Explore the Worst Episodes of Masters of Sex!

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William Masters and Virginia Johnson are real-life pioneers of the science of human sexuality. Their research touched off the sexual revolution and took them from a midwestern teaching hospital to the cover of Time magazine

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Episode Rankings

  1. #1 Worst Episode
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    Masters of Sex Season 3 Episode 7 - Monkey Business
    7.1/10(392 votes)

    #1 - Monkey Business

    S3:E7

    Masters and Johnson are interviewed as they take on an exotic new patient.

    Director:Adam Arkin
    Writer:Unknown

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  2. Masters of Sex Season 3 Episode 9 - High Anxiety
    7.3/10(379 votes)

    #2 - High Anxiety

    S3:E9

    Masters continues his surrogacy program, now under Johnson's critical eye.

    Director:Dan Attias
    Writer:Jonathan Igla

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  3. Masters of Sex Season 3 Episode 3 - The Excitement of Release
    7.5/10(422 votes)

    #3 - The Excitement of Release

    S3:E3

    Masters and Johnson look to capitalize on their burgeoning fame.

    Director:Miguel Sapochnik
    Writer:Steven Levenson

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  4. Masters of Sex Season 3 Episode 2 - Three's a Crowd
    7.6/10(437 votes)

    #4 - Three's a Crowd

    S3:E2

    Masters takes on a high profile patient. Virginia and Libby come to terms.

    Director:Dean Perisot
    Writer:Amy Lippman

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  5. Masters of Sex Season 3 Episode 8 - Surrogates
    7.6/10(387 votes)

    #5 - Surrogates

    S3:E8

    Johnson jets away with Dan Logan. Masters begins his surrogacy program.

    Director:Matt Earl Beesley
    Writer:Unknown

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  6. Masters of Sex Season 4 Episode 7 - In To Me You See
    7.6/10(310 votes)

    #6 - In To Me You See

    S4:E7

    Masters looks to groom Art as his protege in a new area of research as Johnson does her best to keep Nancy at arm's length. Betty seeks an unlikely source for assistance in her fight for equal rights to Helen's baby.

    Director:Michael Apted
    Writer:Unknown

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  7. Masters of Sex Season 1 Episode 2 - Race to Space
    7.7/10(1004 votes)

    #7 - Race to Space

    S1:E2

    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.

    Director:Michael Dinner
    Writer:Michelle Ashford

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  8. Masters of Sex Season 2 Episode 8 - Mirror, Mirror
    7.7/10(506 votes)

    #8 - Mirror, Mirror

    S2:E8

    Masters privately treats a couple for infertility, without revealing his relationship to them. Johnson realizes her work with Masters can be used to help people suffering from sexual dysfunction - but quickly gets in over her head when she attempts to treat Barbara Sanderson on her own. Libby is unnerved after witnessing a hate crime that is then whitewashed by the police.

    Director:Michael Apted
    Writer:Steven Levenson

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  9. Masters of Sex Season 3 Episode 4 - Undue Influence
    7.7/10(401 votes)

    #9 - Undue Influence

    S3:E4

    Masters seeks unexpected advice. Virginia is distracted by news of Henry.

    Director:Christopher Manley
    Writer:Gina Fattore

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  10. Masters of Sex Season 3 Episode 6 - Two Scents
    7.7/10(395 votes)

    #10 - Two Scents

    S3:E6

    Masters and Johnson take on a famous couple hoping to renew their sex life.

    Director:Michael Weaver
    Writer:Unknown

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  11. Masters of Sex Season 3 Episode 10 - Through a Glass, Darkly
    7.7/10(385 votes)

    #11 - Through a Glass, Darkly

    S3:E10

    Johnson objects to Masters' program following missteps in the protocol.

    Director:Jeremy Webb
    Writer:Unknown

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  12. Masters of Sex Season 4 Episode 1 - Freefall
    7.7/10(368 votes)

    #12 - Freefall

    S4:E1

    In the wake of their fallout, Masters and Johnson search for purpose in a world without one another and look to work as their personal lives crash down around them. Libby finds herself alone for the first time since her marriage and discovers some unexpected allies. Season premiere.

    Director:Colin Bucksey
    Writer:Unknown

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  13. Masters of Sex Season 4 Episode 2 - Inventory
    7.7/10(338 votes)

    #13 - Inventory

    S4:E2

    Masters and Johnson turn to new partners in an effort to put the past behind them and focus on their expanding clinic. Given their fractured triangle, Libby reevaluates her relationship with Bill and Virginia.

    Director:Jeremy Webb
    Writer:Unknown

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  14. Masters of Sex Season 4 Episode 3 - The Pleasure Protocol
    7.7/10(327 votes)

    #14 - The Pleasure Protocol

    S4:E3

    Masters and Johnson adjust to new partners, but their respective cases have them second-guessing the instinct to remain separated. A romantic prospect pushes Libby to embrace life as a newly single woman of the sexual revolution.

    Director:Adam Arkin
    Writer:Unknown

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  15. Masters of Sex Season 2 Episode 2 - Kyrie Eleison
    7.8/10(581 votes)

    #15 - Kyrie Eleison

    S2:E2

    Masters begins a new job at Memorial Hospital under Betty's extortion terms only to discover that his boss insists he leave Virginia behind in favor of a handpicked secretary. Meanwhile, Johnson is torn between pressing Masters to rehire her and staying by DePaul's side as her condition worsens.

    Director:Michael Apted
    Writer:David Flebotte

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  16. Masters of Sex Season 1 Episode 3 - Standard Deviation
    7.9/10(919 votes)

    #16 - Standard Deviation

    S1:E3

    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.

    Director:Lawrence Trilling
    Writer:Sam Shaw

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  17. Masters of Sex Season 2 Episode 1 - Parallax
    7.9/10(691 votes)

    #17 - Parallax

    S2:E1

    Masters deals with the ramifications of his disastrous presentation and being fired from the hospital. Meanwhile, Libby urges Masters to get another job; and Virginia fights off advances and innuendos stemming from the belief that she was the woman in Master's explicit film.

    Director:Michael Apted
    Writer:Michelle Ashford

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  18. Masters of Sex Season 2 Episode 4 - Dirty Jobs
    7.9/10(563 votes)

    #18 - Dirty Jobs

    S2:E4

    Langham observes Masters and Johnson exiting a hotel room and shares his suspicions with DePaul, who is forced to make plans for her work without Virginia's involvement. Meanwhile, Betty attempts to conceal her infertility from Gene; and Masters tries to bring Johnson aboard as his assistant only to be thwarted by the head of the hospital, who takes a prurient interest in Masters' study.

    Director:Michael Engler
    Writer:Steven Levenson

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  19. Masters of Sex Season 2 Episode 7 - Asterion
    7.9/10(534 votes)

    #19 - Asterion

    S2:E7

    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.

    Director:Michael Dinner
    Writers:Michelle Ashford, David Flebotte

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  20. Masters of Sex Season 2 Episode 9 - Story of My Life
    7.9/10(483 votes)

    #20 - Story of My Life

    S2:E9

    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.

    Director:Jeremy Webb
    Writer:Amy Lippman

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  21. Masters of Sex Season 3 Episode 1 - Parliament of Owls
    7.9/10(485 votes)

    #21 - Parliament of Owls

    S3:E1

    Masters and Johnson face the press for the first time.

    Director:Jeremy Webb
    Writer:Michelle Ashford

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  22. Masters of Sex Season 4 Episode 9 - Night and Day
    7.9/10(316 votes)

    #22 - Night and Day

    S4:E9

    Masters and Johnson return from Topeka, each grappling with the trip's ramifications. Art and Nancy look to tie up loose ends in order to have a fresh start, and Libby embarks on a road trip with Bram that changes her perspective.

    Director:Karyn Kusama
    Writer:Unknown

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  23. Masters of Sex Season 4 Episode 10 - The Eyes of God
    7.9/10(350 votes)

    #23 - The Eyes of God

    S4:E10

    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. Season finale.

    Director:Michael Apted
    Writer:Unknown

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  24. Masters of Sex Season 1 Episode 1 - Pilot
    8.0/10(1372 votes)

    #24 - Pilot

    S1:E1

    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.

    Director:John Madden
    Writer:Michelle Ashford

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  25. Masters of Sex Season 1 Episode 4 - Thank You for Coming
    8.0/10(875 votes)

    #25 - Thank You for Coming

    S1:E4

    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.

    Director:Jennifer Getzinger
    Writer:Amy Lippman

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Worst Episodes Summary

"Monkey Business" is the worst rated episode of "Masters of Sex". It scored 7.1/10 based on 392 votes. Directed by Adam Arkin and written by Unknown, it aired on 8/23/2015. This episode scored 0.2 points lower than the second lowest rated, "High Anxiety".