Inspector Max Beckmann and his colleague Christian Markowski are faced with a series of unusual murders; at first they are baffled when they establish that the only apparent similarities between the victims is that they are all blonde - and have all been brutally mutilated. Beckmann’s former girlfriend, the psychologist Karin Cramer, compiles a profile of the perpetrator... which only serves to pose an apparently insoluble puzzle for the investigators.
As they continue to search for the murderer their investigation leads them into the transvestite underworld, where they not only experience an immense surprise but also find the solution to the case.