'Is love coincidence or fate?' This constant and nagging question drives Fritz Alt to his favorite bar in Munich's Gärtnerplatz district, where he is full of hope and waiting for his great love, Gerd. Shortly thereafter, the Munich chief inspectors Ivo Batic and Franz Leitmayr find Fritz's corpse bleeding to death on a construction site. Not only barkeeper Ringo, but also Fritz Alt's neighbors Tim and Tom are puzzled about the circumstances of his unexpected death. The rumors in the gay community boil up. There's Ralf Kleinmann, Fritz's ex-lover, who couldn't get over the breakup with the respected photographer. The two watched each other until the end. Carla is worried tooWeißenbach about her husband Gerd. Because the family with the growing children Frieda and Werner threatens to break up.
With the help of clear clues, the inspectors get into a bizarre computer chat room, where Fritz was looking for contacts using a pseudonym. As a result of the investigation, Ivo Batic gets involved in the colourful, dangerous world of anonymous desires for a relationship and does everything in his power to find the murderer. Franz Leitmayr remains as down-to-earth as usual during the search. During the investigations by the criminal police, Batic and Leitmayr are at the side of Chief Inspector Diana Sommerfeld from Vice. Separately and yet together, they unravel the tragic mystery surrounding Fritz.