Plot
The inventor Sir Claude Amery wants to give the thief of the formula for his latest invention the chance to return it in the dark without being recognized. He gathers everyone in the house in the library and has the lights switched off for a short time. When the light comes back on, Amery is dead. A case for the Belgian master detective Hercule Poirot.
Trailer
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Cast
Horst Bollmann
Hercule Poirot
Heinz Fabian
Dr. Graham
Ernst Fritz Fürbringer
Lord Amery
Käthe Haack
Caroline
Gert Haucke
Inspec. Japp
Otto Kurth
Butler
Anita Lochner
Barbara
Ulli Philipp
Lucia
Jochen Schmidt
Richard
Jochen Sostmann
Cap. Hastings
Friedrich von Thun
Raynor
Herbert Weicker
Dr. Carelli
