A dead body, many clues, contradictory witness statements ...

... and you are supposed to solve this case! Who wouldn't want to be a detective and solve a murder case? The crime scene is located on the top floor of the crime house. Its sinister secret has been guarded by the sloping walls of the attic since 1978. A gruesome murder took place here, the circumstances of which remain unsolved to this day. Now it's up to you! Who killed Dieter B. with the winner's cup? Are you ready to take up the investigation?

After you have received your investigator's file in the bookshop or in Café Sherlock, the adventure can begin. Old photographs, written documents, newspaper clippings and the contents of desk drawers, cupboards and wastepaper bins are important pieces of the puzzle in solving the mystery. In addition, film and audio documents must be evaluated in order to uncover the identity of the murderer. Take your time, investigate in peace and quiet and drink an inspiring cup of coffee in between. When you are completely sure at the end, the confession in the sealed envelope will tell you whether you have followed the right trail.