The deceased is actually Shimomura Shiho, who has millions of money. In the next games, Shiho's son is also poisoned and dies. They are asked to find a key by eating noodles to escape. Everyone escapes and is taken to the next stage, where they are told only one will survive. They are to find a key and are to do it without acting like barbarians. Shiho's sun locks himself in the bathroom, thinking he has figured out the puzzle only for Kindaichi to break open the door and find him killed by poisoned spikes behind a frame. The room then fills with poison gas and all are found lying in hospital beds.