PREVIOUSLY: Review: 'Masters of Sex' Season 3, Episode 7, 'Monkey Business': No Use to Man or Beast The Syllabus Tonight's episode of "Masters of Sex" begins with two sleights of hand. As Virginia (Lizzy Caplan) feigns flu to secure a few days in Las Vegas with Dan Logan (Josh Charles), Bill (Michael Sheen) expresses concern with an eye to launching the clinic's sex surrogacy program, despite her objections.