Jun, a young pimp in Tokyo, is so emotionally estranged from himself and the world around him that he has forgotten much of his past. With the help of an oddball psychotherapist, "Dr. T", Jun begins to uncover the shameful memories at the root of his confusion: As a teenager, he seduced and slept with his younger sister, Kumi. This discovery returns Jun to his childhood home, and to Kumi, who he has not seen or communicated with in many years. What follows is an unexpected and explosive chain of events confronting Jun with his misdeeds, and also revealing to him the true cause of his isolation. This haunting and often funny film is a unique exploration of love, regret, and the essentially bizarre in human relationships.