William Powell stars as a debonair thief who steals both gems and hearts in this pre-code gem directed by William Dieterle. Bored Baroness Teri von Horhenfels (Kay Francis) is on the prowl for a new lover when she witnesses a jewelry store robbery and decides the head of the gang (Powell) will be her next prey. She casts aside her current amour, but her husband (Henry Kolker) will not surrender so easily: He dedicates himself to putting The Robber behind bars.