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Season 1 - Sep. 29, 2013
Season 2 - Jul. 13, 2014
Season 3 - Jul. 12, 2015
Season 4 - Sep. 11, 2016
![Masters of Sex Season 4 Episode 4 Masters of Sex Season 4 Episode 4](http://images.weserv.nl/?url=//image.tmdb.org/t/p/w185/ul6IDvAX5EOL2u28rJVRDIcyu5H.jpg)
Masters of Sex Season 4 Episode 4
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.