The renowned psychiatrist Lilian Steiner mounts a private investigation into the death of one of her patients, whom she is convinced has been murdered.
Dr. Lilian Steiner, an American psychoanalyst in Paris, is devastated to learn that her client Paula has taken her own life. Or has she? Visits from Paula's furious widower, Simon, and taciturn daughter Valérie, along with the discovery that files have been stolen from Lilian's office, suggest that Paula may have fallen victim to foul play. Assisted by her ex-husband Gabriel, Lilian undertakes some amateur sleuthing. Her initial investigations prompt more questions than answers until a session with a hypnotherapist causes Lilian to wonder whether her relationship with Paula began in a previous incarnation. — Canon y mus