While surprising information about the parentage of several of the people involved is revealed, Ran is kidnapped for real and the true nature of the Poison Dragon comes to light. Ran's tattoo indicates the whereabouts of a nuclear bomb that could detonate in less than 12 hours!

While Detective Li races to find the bomb before it goes off, Kindaichi goes back to the hotel to recreate the first murder. But how can one killer account for three murders when all of the main suspects have perfect alibis?

Kindaichi unmasks the true Poison Dragon! Did Miyuki really murder three people in Hong Kong?

Kindaichi is on a treasure-hunting reality show with the goal to find a hidden ton of gold bullion, but he and the other contestants and staff don't realize they're being stalked by a murderous masked figure who may be an alchemist! Making matters worse is the fact that they're trapped on an isolated island with no means of communication!