Masquerade Hotel Collection

When three murders occur in Tokyo, aside from the corpse and the crime, the commonality is the placement of numbers next to scene of crime. As such, the lead investigator pieces together enough clues to assume the scene of the next murder. He goes undercover and presents himself at an employee of the hotel. The present hotel employee is placed in charge of the detective's training, but it is clear that they have different priorities. In the meantime, there is a potential crime to prevent and criminal to apprehend.

An anonymous letter is delivered to the Tokyo Metropolitan Police Department. The letter states that a criminal of a murder case will appear at the countdown party Masquerade Night that will be held at Hotel Cortesia Tokyo. Detective Kosuke Nitta (Takuya Kimura) must go undercover and work again at the Hotel Cortesia Tokyo. There, he meets Naomi Yamagishi (Masami Nagasawa), who works as a concierge. Without any information about the criminal, except that the person will be in attendance, Detective Kosuke Nitta works feverishly to find the criminal among the 500 attendees.