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 must go undercover and work again at the Hotel Cortesia Tokyo. There, he meets Naomi Yamagishi, 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.

Murder in Three Acts
1986
5.8/10

Youth of the Beast
1963
6.9/10

Detective Conan: The Darkest Nightmare
2016
6.8/10

Creepy
2016
6.7/10

Lady in the Lake
1946
6.1/10

Suspect X
2008
7.6/10

Impossibility Defense
2018
7.2/10

Detective Conan: The Bride of Halloween
2022
6.4/10

Case Closed: The Fourteenth Target
1998
7.1/10

Murder on the Orient Express
1974
7.1/10

The Mask of Dimitrios
1944
7.0/10

Detective Conan: The Raven Chaser
2009
7.3/10

Detective Conan: Crossroad in the Ancient Capital
2003
7.1/10

The Mirror Crack'd
1980
6.1/10

The Night Strangler
1973
6.7/10

Sherlock Holmes Faces Death
1943
6.9/10

The Blue Gardenia
1953
6.5/10

Detective Conan: The Private Eyes' Requiem
2006
7.1/10

Little Caesar
1931
6.9/10

The Quiller Memorandum
1966
5.9/10
Identity
2003
7.178/10