With the help of her alters, a former spy with dissociative identity disorder devises a plan to take down the man who tried to kill her — a one-eyed double agent known only as "the One-Eyed." Morgane shares her mind with several distinct personalities, each with their own strengths. Together, they track their target, switching identities day by day. To stay coordinated, they use a Dictaphone to document their investigations, passing information from one alter to the next. But when Louise — one of them — breaks ranks and makes a deal with two thugs to escape the confines of their shared life, everything begins to unravel. The two men agree to help her in exchange for a fortune, manipulating the system from within by impersonating the One-Eyed himself. Yet the web of deception tightens — and soon, they find themselves trapped, prey to the obsession of a woman who is many… and one.​