D'après une histoire vraie

Delphine is the author of an intimate novel devoted to her mother which became a best-seller. Already exhausted by multiple solicitations and fragile by memory, Delphine is soon tormented by anonymous letters accusing her of exposing her family to the public. She then crosses paths with Elle. A young woman who is seductive, intelligent, and intuitive. She appears to understands Delphine better than anyone. Delphine clings to Elle, confides, abandons herself. While she settled down at the novelist's house, their friendship takes on a disturbing turn. Did she come to fill a void or steal her life?