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.
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Not streaming anywhere
Not on any streaming service in United States, and not available to rent.
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Cast
12 people
Claus Peter Witt Director · Peter Goldbaum Screenplay Agatha Christie Author
First release August 2, 1973 · Produced in Germany
Production
ZDF
Production
Germany
Produced in
Languages
Original language
German
Spoken on screen
German
Release dates
Germany · August 2, 1973
Theatrical
No release date listed for United States.
More from Claus Peter Witt
Other films they directed, best known first.
Some details come from TheTVDB.