Where can I watch “Masters of Sex” Season 4 Episode 4 online?

This page provides episode info and a legal-only guide. It does not host streams or downloads. Check official platforms and licensed services for availability in your region (US first).

Do I need to watch earlier episodes before “Mäntel oder Schlüssel”?

Watching earlier episodes in season 4 helps you follow the plot and character arcs leading into this episode.

Watch Masters of Sex Season 4 Episode 4 Online

“Mäntel oder Schlüssel” — Watch "Masters of Sex" Season 4 Episode 4 online in HD for free. Check streaming providers, cast, and episode details.

Oct 2, 2016 Season 4 Episode 4 60 min TV-MA

6.8 ★ ★ ★ ★ ★

15 votes

Masters of Sex Season 4

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Season 4 Episode 4 — Aired on Oct 2, 2016 • runs about 60 minutes.

Directed by Colin Bucksey.

Notable cast/guest names in this episode include Michael Sheen, Lizzy Caplan, Caitlin FitzGerald, Annaleigh Ashford.

This page includes 6 official still(s) (when available) plus legal availability links.

Looking for “watch Masters of Sex Season 4 Episode 4 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Die Sexualforscher William Masters und Virginia Johnson landen auf einer Party. Zufällig weilen dort auch Williams Noch-Ehefrau Libby und deren neuer Schwarm, der pikanterweise zugleich Williams Anwalt ist. Paarungen und Perspektiven verschieben sich im Laufe der Nacht, bis der Morgen die Konsequenzen des Abends offenbart ...