Mr. Egon Manz wakes up in a hotel room after a night out with friends and finds a dead prostitute in his bed. His friend Reinhold Beckert calls immediately Dr. Franck, who persuades him to go to the police: unfortunately, due to heavy drinking, Manz cannot remember anything of that night and so he is arrested. Matula has got to investigate to prove his innocence, while Dr. Franck takes care of saving his client's marriage.
—AleX_DJ