The remote Clock House is filled with priceless timepieces from across the world. It is also rumoured to be haunted by the spirit of a dead girl. A team of ghosthunters visit the mansion to investigate, but their stay has barely begun when one of them is gruesomely murdered, and the survivors realize that they are trapped inside the house with a killer... As the murderer's bloody spree continues, the team are picked off one by one. Can the brilliant detective Shimada Kiyoshi crack the enigma of the Clock House before all those inside have been slain? And can you guess the solution before he does?