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...
André Dussollier | Bélisaire Beresford | |
Nicolas Marié | Docteur Nicolas Roscoff | |
Agathe de La Boulaye | Docteur Matarazzi | |
Linh Đan Phạm | Marie Van Dinh | |
Éric Naggar | Docteur Jünger | |
Bernard Verley | Le Général |
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