Synopsis by Nicole Gagne
Banker John Caswell (Francis X. Bushman), a wealthy widower, decides to leave his scheming mistress Irene (Margaret Livingston) and marry the upper-class Helen (Helene Chadwick) instead. Seeking revenge, Irene starts an affair with Caswell's son Doug (Arthur Rankin). Caswell learns of their relationship and tells Doug the truth. The two men go to confront Irene only to discover that she has been shot to death in her apartment. Caswell puts the abandoned revolver in Irene's hand to make the shooting look like suicide. Police Detective Mitchell (Alphonz Ethier) pressures a confession from Doug, but he knows that the young man is innocent and instead accepts the notion that Irene killed herself, even though he has found one of Helen's earrings at the crime scene and knows that she is the murderer.