The hero discovers his estranged wife dead and tries to frame her lover for the murder. He becomes involved with the criminals who make various unsuccessful attempts on his life while the police clear up the mystery.
A race car driver marries a woman for her money and plans to murder her. An old suitor steps in to help her but the driver takes steps to eliminate the rival. But there's a flaw in the driver's plans.
A woman reporter discovers a former lover and intelligence officer during WWII apparently working as a waiter in a hotel; and, believing something she impulsively did while he was on a mission is responsible for his current situation, sets out to make things better by finding a foreign agent known only as Kupchek, with the help of the hotel's detective.
