Taekrok, an old detective near retirement, receives a threatening call from an unknown man and is falsely charged with murder. The blackmailer calls himself a friend and suggests a game. He orders Taekrok to review the past cases he was in charge of. The old detective desperately recalls the past to find out who the blackmailer is and discover his intentions. Can Taekrok finish this thrilling game? Some flashing lights sequences or patterns may affect photosensitive viewers.