John Vallancourt, the cool, calm diplomat, is worried stiff. A dear friend is dead and his daughter Nancy is missing. John fears the worst—and the worst is Nancy's sweetheart Keith Rollins. Keith is the prime suspect in the case and he is running scared, dragging Nancy into danger with him. If Keith is a murderer, John is certain of one thing: he has to catch Keith before the cops do, or he might find himself with one very dead daughter!