while hammer is a guest at the hilton casino he gets an anonymous request to meet a person at a wedding chapel who turns out to be a wealthy socialite named helen durant. then johnny dies in an explosive booby trap and somebody plants evidence that points to hammer. he sets out to try and clear his name after barbara too gets killed and he is again the suspect. while investigating, hammer chases an unknown criminal who falls from the ceiling with him at the hotel's casino, landing on a craps table. the hospitalised hammer meets a medical doctor named carl durant who asks him about johnny's death and who had bailed him out of jail. the answer turns out to be his wife, helen, who met hammer at the wedding chapel earlier.