Gabriel Signoret

A husband who has just cheated on his wife returns home in the early morning, in a daze. Another man is there, and the dazed man confesses his infidelity to this stranger--who turns out to be his wife's lover.

A Parisian museum director believes his wife has lost interest in him and so places a poisoned cigarette in the box on his desk - thus allowing chance to decide the moment of his death.