1949 French secret service special agent Henri Robin is sent to Berlin on a mysterious mission: to observe a murder that is about to take place in one of the squares of the dilapidated city. At the station he catches a glimpse of his double. In the story that Robin tells, more and more strange details appear, and a nameless investigator comes to the rescue, correcting his testimony. The labyrinth novel by the famous French writer Alain Robbe-Grillet is a whimsical game, full of false corridors and optical illusions.