
Mike's vacation at the 1958 World's Fair in Brussels is interrupted by a case. Wealthy Wilma Puttnam asks Hammer to investigate the people claiming to have the daughter of her late sister who died in the Nazi concentration camps. Mrs. Puttnam wants to be sure it's really Anna/Derna before paying the $5000 they're asking for.
When an innocent man is accused of murder, Mike is hired to find the real killer of a photographer who ran a phony modelling school and dabbled in blackmail on the side.