Could Masters and Johnson pull off posing as a couple?
That was a key question on Masters of Sex Season 4 Episode 8 when they joined forces to lie that they were couple in order to investigate practices at a competing clinic.
Meanwhile on this addictive drama series, Art, Nancy and Langham took advantage of Bill and Virginia being away and used their absence to further their own agendas.
Use the video above to watch Masters of Sex online to get caught up with the latest developments for the characters.
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.