After a horrific rape and murder, investigator Masumi Ozawa sees the victim's mother clinging to her daughter's body and vows to catch the killer. Years pass without a lead until the mother claims her trauma-suppressed memory has returned. She identifies the man she crossed paths with immediately after the crime as Oshima, president of a management consulting firm. Determined to uncover the truth, Masumi goes alone to his office, unaware of what awaits her.