Mrs Henry Thorsen, a wealthy widow, has reason to believe her retarded daughter is being blackmailed. She hires the Acme Detective Agency to find out why and who the blackmailer is. The assignment is given to Dirk Wallace and his aide, Bill Anderson. It all seemed quite straightforward when the two operators began to probe. From then on, they became involved with violence, drugs and, finally, the Mafia. The magic of James Hadley Chase’s storytelling will keep you reading to the last page