Harbour policeman Hans and his companion rescue a young woman from water during their night watch, to find out she is connected with a jewel robbery in which a gangster now owner of an hippodrome, an out jailed one and his mistress now mixed up with an American millionaire weave some obscure plans.
as Hans Röder
as Trude
as George Brown alias McBorn, Gangster
as Patterson, reicher Amerikaner
as Gloria, seine Freundin
as Andersen, Kriminalkommissar
as Fräulein Schönholz, Kriminalbeamtin
as Barini, Inhaber des Hippodrom
as Willy, Stallmeister
as Frau Pahlke
