Two years after a burn-out, Duval is still unemployed. Contacted by an enigmatic businessman, he is offered a simple and well-paid job: transcribing telephone tapping. Duval accepts financially without questioning the purpose of the organization that employs him. Precipitated at the heart of a political plot, he must face the brutal mechanics of the underground world of the secret services.
Part-time model Valentine unexpectedly befriends a retired judge after she runs over his dog. At first, the grumpy man shows no concern about the dog, and Valentine decides to keep it. But the two form a bond when she returns to his house and catches him listening to his neighbors’ phone calls.