An innocent man stumbles across a political intrigue, when he discovers that his neighbours apartment is bugged. They are then found dead and their killers description resembles the man.
| Actor | Role |
|---|---|
 Jean RochefortAlain Tescique | Alain Tescique |
 Jean-Pierre MarielleDaniel | Daniel |
 Dominique SandaBéatrice | Béatrice |
 Jean-Hugues AngladeJean-François | Jean-François |
 Roland BertinLe commissaire | Le commissaire |