Christopher Cross (Edward G. Robinson) is a lonely man married to a nagging wife. Painting is the only thing that brings him joy. Cross meets Kitty (Joan Bennett) who, believing him to be a famous painter, begins an affair with him. Encouraged by her lover, con man Johnny Prince (Dan Duryea) Kitty persuades Cross to embezzle money from his employer in order to pay for her lavish apartment. In that apartment, happy for the first time in his life, Cross paints Kitty's picture. Johnny then pretends that Kitty painted to portrait, which has won great critical acclaim.
Based on the novel "La chienne" by Georges de La Fouchardière.