Kai Korthals plays cat and mouse with Klaus Borowski and Mila Sahin in Kiel. The notorious woman killer is serving life in a forensic psychiatric ward when a riot erupts during a theatrical performance by the inmates. Kai saves the prison psychologist from being raped, killing two attackers in the process. Then he manages to escape from the clinic undetected. Apparently, many women haveFeeling attracted to the killer, in his cell Borowski and Mila Sahin find numerous letters from admirers who are now in grave danger. Borowski initially resists the dangerous hunt for the killer, because six years ago Kai Korthals became Borowski's personal nightmare and kidnapped his fiancée Frieda Jung. But then the body of a young woman is found on the shore of a lake