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"Kagi no Kakatta Heya" draws on a novel by novelist Kishi Yusuke. Ohno plays an employee on the major security company having to unravel various reports. The series falls underneath the "locked room" unknown genre, in which crimes tend to be committed under seemingly out of the question circumstances (such as in just a room with no apparent means of escape). Ohno's character has an obsession with studying keys and locks, giving him a benefit in solving each secret.

Kagi no Kakatta Heya Episode 2 movie preview :