When Sherlock Ohms is summoned to Magnet Manor by the mysterious Mr A.T.Mos he senses devilry afoot. His suspicions are further aroused upon learning that five of the wealthiest men in the world have also received similar invitations. Accompanied by his loyal companion Dr Watts-On he travels to the remote island unaware of the tragic events that will shortly unfold. As one by one the guests fall victim to the evil A.T.Mos can Ohms solve the mystery and uncover the evil perpetrator...