Marcel works as assistant to a jeweller whose bossy daughter Renée keeps hitting on him. When he meets lovely Loulou and her lazy friend Jo, he is fascinated by the…

Favraux, an unscrupulous banker, receives a threatening note, signed by "Judex", demanding that he pay back the people he has swindled. He refuses, and apparently dies after a midnight toast…

Francois, a sympathetic factory worker, kills Valentin with a gun. He locked himself in his furnished room and starts remembering how he was led to murder. He met once Francoise,…