Your Vice Is a Locked Room and Only I Have the Key (1972) Italian Orig. Poster

Your Vice Is a Locked Room and Only I Have the Key
Original title: Il tuo vizio è una stanza chiusa e solo io ne ho la chiave

This is an original Italian One-Panel (1P) poster, very large size - 55"x39.5"

About the movie:
A string of murders are committed near the estate of a degenerate author, whose abusive relationship with his wife is further complicated by the arrival of his manipulative niece.