Masters of Sex - Season 1 - Eps 5: Catherine
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.
About Masters of Sex

Title: Masters of Sex
First Air Date: 2013-09-29
Last Air Date: 2016-11-13
Status: Canceled
Rating: 7.1/10 (from 377 votes)
Language: EN
Seasons: 4
Total Episodes: 46
Network: Showtime
Genres: Drama
Production Companies: Sony Pictures Television, Round Two Productions, Timberman/Beverly Productions
Synopsis
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 and multiple appearances on Johnny Carson's couch. He is a brilliant scientist out of touch with his own feelings, and she is a single working mother ahead of her time. The series chronicles their unusual lives, romance, and unlikely pop culture trajectory.
Cast

Michael Sheen
William Masters

Lizzy Caplan
Virginia Johnson

Caitlin FitzGerald
Libby Masters

Annaleigh Ashford
Betty DiMello