The Draughtsman's Contract (1982)

You know a contract can't end well when it's for sex, and The Draughtman's Contract (1984) is no different. A dude named Mr. Neville is brought to a wealthy manor, where he is to do 12 large drawings of a wealthy manor where Mrs. Herbert lives. Her husband, Mr. Herbert, is away, so the lady of the house is like, "hey, why don't you do with me what you will?" And he's like, "Sure." Soon enough, her adult, married daughter is in on the fun too, and wants to have her way with Mr. Neville. When Mr. Herbert's body shows up very dead, shit hits the fan—but mostly for Mr. Neville. Luckily we have a painted nude model in the form of Michael Feast, who bares cock and balls while he's peeing and being drawn!