A stranger enters into and forever alters the life of a couple. He claims to be pursued by certain authorities who intend to prevent him from disclosing a secret that only he holds, whence the title. Is he lying, or insane - or is he telling the truth? Who, if anyone, is after him? And what *is* - the secret?

David Daguerre

Julia Vandal

Thomas Berthelot

Greta

Gardien

Le Médecin

Bertram

Homme oiseaux

Gendarme
October 9, 1974

David Daguerre

Julia Vandal

Thomas Berthelot

Greta

Gardien

Le Médecin

Bertram

Homme oiseaux

Gendarme
