The mysterious Clock House is a remote mansion built by notorious architect Nakamura Seiji for a long-dead clock enthusiast, who filled the building with countless valuable timepieces from across the world. Rumour has it that The Clock House is haunted by the ghost of a young girl, who died 10 years earlier. To investigate the haunting, a team from the paranormal magazine CHAOS visit the mansion along with a psychic medium in an attempt to make contact with the spirit.The plan is for the group of investigators to spend three days locked in the house, but their stay has barely begun when a gruesome murder is committed. And then the survivors find that they are trapped in the house, with no possibility of escape...Meanwhile, the brilliant detective Shimada Kiyoshi is investigating the enigma of The Clock House from the outside, eager to unravel the mystery of another of Nakamura Seiji's twisted architectural creations.But as his investigation proceeds, the team inside the house are being slaughtered one-by-one. Will Shimada crack the puzzle of the Clock House before all of them are dead?