A rich man bequeaths seven keys to seven of his friends, but only one will unlock the door to untold wealth.
Starring
Heinz Drache
Inspector Dick Martin
Eddi Arent
Assistant Detective Holmes
Sabine Sesselmann
Sybil Lansdown
Pinkas Braun
Dr. Antonio Staletti
Hans Nielsen
Lawyer Warren D. Haveloc
Gisela Uhlen
Emily Cody
Werner Peters
Bertram Cody
Klaus Kinski
Pheeny
Siegfried Schürenberg
Sir John
Jan Hendriks
Tom Cawler
Ady Berber
Giacco
Friedrich Joloff
Janitor Burt
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