Munich at night: Robert Susmeit, a 16-year-old teenager who is jealously obsessed with his mother Hilde, traces her and her latest lover at a mundane apartment building where he kills the man in the heat of the moment at a swimming pool. His fatal outburst is secretly witnessed by Moni Dingeldey, a girl of the same age as his. Fascinated by the shaken and devastated strange boy who she hopes to be a soul-mate, she hides Robert in her mother's apartment. Meanwhile, a crowd of policemen and reporters frantically comb through the building in search a murderer whose identity is known only to Robert's parents who are searching as well...
Jan Koester
as Robert Susmeit
Nadja Tiller
as Hilde Susmeit
Susanne Uhlen
as Moni Dingeldey
Siegfried Rauch
as 1. Commissioner
Ellen Umlauf
as Mrs. Dingeldey
Harald Baerow
as Wallich
Jochen Busse
as Kirr
Manfred Spies
as Krüss
Karl-Otto Alberty
as 2. Commissioner
Liane Hielscher
as Elvira Schramm
Hertha von Walther
as Mrs. Kuhn
Wolfgang Völz
as Mr. Stein
