Shikyû no kioku

17-year old Masato, who was kidnapped as an infant and returned to his parents after 40 days. Masato's father is a dentist and he seem to have everything that he needs. However, Masatos life is a constant battle in a loveless relationship with his mother. To help himself cope, Masato comes to believe that the woman who kidnapped him 17 years ago is his real mother and embarks on a journey to find her...