Title: The Key
Rating: 5.3 (1,093 votes)
Runtime: 1 h 56 min
Director: Tinto Brass
Cast: Frank Finlay, Stefania Sandrelli, Franco Branciaroli, Barbara Cupisti
Plot: A husband and wife lock their diaries in a drawer and also know that they read each other's entries, a device which takes them from one sexual encounter to another.
Imdb Url: http://imdb.com/title/tt0085328