"You're Lonely When You're Dead" builds a mystery of a series of murder which is finally broken down by an intelligent detective. The story is woven around a millionaire's wife who is suspected of kleptomania. It begins one sunny morning around 11'o clock in mid-March. Mr. Vic Malloy, head of Universal Services, goes to meet a millionaire, Mr. Jay Franklin Cerf, who hires him to watch his wife, Anita Cerf, whom he suspects of kleptomania. Malloy appoints one of his operator, Dana Lewis, for the job but she was found dead after a few days of work. The millionaire's wife also vanishes. As Universal services guaranteed secrecy, Malloy had to beat the cops to the murderer.