Hélène Masson visits her friend Gérôme Savignat in the isolated rejuvenation clinic owned by Dr. Devilers and his partner Dr. Berbard. But after a series of tragic events, Hélène goes further in her investigation of the clinic.

Cast: Annie Girardot, Alain Delon, Robert Hirsch, Michel Duchaussoy, Anna Gaylor, Jean-François Calvé