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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...
Top Cast
Catherine Frot as Prudence Beresford
André Dussollier as Bélisaire Beresford
Nicolas Marié as Doctor Nicolas Roscoff
Agathe de La Boulaye as Doctor Matarazzi
Linh-Dan Pham as Marie Van Dinh
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