Prudence and Bélisaire Beresford have decided to take things easy. But when a rich Russian heiress disappears, Prudence can't resist and Bélisaire is forced onto the adventure. Their investigation will put them on the trail of a mysterious scientist who holds the secret to eternal youth...
Pascal Thomas
Director
Catherine Frot
Prudence Beresford
André Dussollier
Bélisaire Beresford
Nicolas Marié
Doctor Nicolas Roscoff
Agathe de La Boulaye
Doctor Matarazzi
Linh-Dan Pham
Marie Van Dinh
Éric Naggar
Doctor Jünger
Bernard Verley
The General
Hervé Pierre
The family doctor
Sarah Biasini
Marie-Christine
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