Leon (Claude Melki), bored with his life as a bathhouse attendant, is too timid to be more than just friends with the prostitutes in his quarter, though he has a real crush on one of them (Marion Game). One night, she takes him to see a ballroom dancing competition, and he is impressed both by the dancing, and her interest in it. With his friend Ramon (Guy Marchand), he enrolls in a tango class, and soon afterward is in the arms of his beloved on and off the dance floor.