1. The Train Shrouded in Fog: On a train cut off from the outside world, passengers die one after another... Who will be next? Is the culprit behind it all human or ghost?
2. Deadly Prediction: A banquet, a conspiracy. But the person who was poisoned survives, while someone who wasn't poisoned dies of poisoning...
3. The Fatal Match: "One match fell headfirst, one match sank in water, one match turned into a cotton swab, and another burned to ash." A letter predicting murder throws the whole city into chaos. After three consecutive locked-room murders, can the police stop a fourth?