David Zimmerman, a reclusive photographer, steps outside his routine when he attends a wild party at the insistence of his friends. A mysterious woman he meets there quickly takes complete hold of his mind. David develops an increasingly intense obsession with this woman and begins to follow her. But when the night ends and dawn breaks, everything changes irrevocably. When David opens his eyes, he is no longer in his own body; he has awakened in the body of the woman he has become obsessed with.
