Barrington is enjoying himself at the Lawyer's Club Annual Dinner. He is picked up by a beautiful woman who drugs him and takes compromising pictures of him. In desperation, Barrington asks Hammer to find out who is blackmailing him.The mystery deepens when it turns out that the beautiful woman turns out to be a female impersonator. The blackmailer wants him to lose all of his current 12 cases. But which one is the blackmailer. Hammer's first lead is murdered as he sets to work to find out what is going on.