The lastest neuroscience discoveries show surprising results: false memories, distortion, modification, déjà vus. Our memory is affected in many ways, and deceives us every day. The very fact of recalling souvenirs modifies them. The everyday consequences are manyfold. To what extent can we rely on our souvenirs? How much credit can we give them during trials? Even more shocking, scientists have proved to be able to manipulate our memory: creating artificial souvenirs, deleting, emphasizing or restoring them on demand.