Ernst Simoneit

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.

A young woman left her family for an unspecified reason. The husband determines to find out the truth and starts following his wife. At first, he suspects that a man is involved. But gradually, he finds out more and more strange behaviors and bizarre incidents that indicate something more than a possessed love affair.