Irene is unhappy because her lawyer husband Dr. Leuttern never has time for her. Womanizer Mac Norris slyly benefits from her depression and lures her to his apartment. As she struggles to fend him off a shot is fired and Mac collapses.
The daughter of a wealthy art dealer is blackmailed, and then his former wife is found dead in a Paris hotel.One of the four suspects turns out to be actually a police detective.