London, Maryon Park, late 60's, in Michelangelo Antonioni's film Blow Up, a couple of lovers on a walk, a photographer takes them as a subject. The enlarged shots of this scene reveal the presence of a man with a gun, hidden in the bushes. At night, the photographer returns to the scene and finds that a crime has been committed. The body of the lover lying dead in the grass. Later, the photographic prints stolen, the body gone, no evidence of the events remains.

Paris, 2010's, Google street, a circuit around Maryon Park, a succession of still images, enlargements of images, like so many attempts to get inside the park and find traces of past events.