Querelle (1982)

"It will take you into a surreal world of passion and sexuality, further than most would dare to go."

French sailor Querelle arrives in Brest and starts frequenting a strange whorehouse. He discovers that his brother Robert is the lover of the lady owner, Lysiane. Here, you can play dice with Nono, Lysiane's husband: if you win, you are allowed to make love with Lysiane; if you lose, you have to make love with Nono... Querelle loses on purpose.