80 minutes
3/29/1972
Professor Marcilly is a famed brain specialist who, following in-depth and extended research work, is now able to perform brain transplant surgery. One day, he finds himself in the presence of a young car accident victim for whom the only hope of survival would be a brain transplant. Marcilly, who has a heart condition and is terminally ill, decides to become the "donor". The operation is a success. But who is actually the patient discharged from the hospital: a young fellow with the brain of a young man or an old man in the body of a young one?
Mathieu Carrière
as Franz Eckerman
Jean-Pierre Aumont
as Le professeur Jean Marcilly
Nicoletta Machiavelli
as Héléna
Michel Duchaussoy
as Le docteur Robert Desagnac
Marianne Eggerickx
as Marianne Marcilly
Martine Sarcey
as Le docteur Catherine Ponson
Benoît Allemane
as Costet
Monique Mélinand
as Elisabeth Marcilly
Christian Duroc
as Ferrière
Pierre Santini
as Dino
Andrée Tainsy
Max Vialle