The girl Chloe (Marine Vacth) had a stomachache and sought medical treatment to no avail. The doctor inferred that her condition was caused by heart disease and recommended her to see a psychiatrist. In this way, Chloe became a patient of Paul (Jérémie Renier). Under Paul's persuasion, Chloe gradually opened her heart and confessed to Paul her past dark experience. As time went on, Paul and Chloe developed a relationship that went beyond the doctor-patient relationship. In the end, Chloe and Paul came together and began to live together. Wonderfully, Chloe never had stomachache again. One day, Chloe found a passport in Paul's luggage. Although the photo on the passport was Paul, the name column said "Louis". Chloe immediately had a deep doubt about Paul's identity, and the nightmare came again.