After a night of drinking, Cathrine has a one-night stand with Alex, after which Alex persistently pursues her. During their time together, Cathrine, a psychologist, discovers that Alex has dissociative identity disorder, with his alter ego named Leo. After tearing apart her arranged marriage to a jerk, reuniting with Alex, and confronting her evil brother Julian, Cathrine suddenly remembers that it was Alex who protected her from domestic violence when she was young—and it was that trauma that caused Leo to emerge! Moved, Cathrine and Alex confirm their relationship. Meanwhile, Julian's threat resurfaces, and this time Alex vows to protect the woman he loves, Cathrine...
