Erika Toda joins a law firm headed by Serizawa-san, on the first case she meets Enomoto Kei of Tokyo total security who unlocks Serizawa who has accidentally been trapped in a vault. Form thereon the trio solve 10 cases related to the locked room. Enomoto always makes a small scale model and thinks technically in terms of security and locks to solve cases, while Serizawa assists by hinting some circumstantial evidences. Serizawa is always ready to take credit of new found fame.
大野智
as Kei Enomoto
戸田恵梨香
as Junko Aoto
佐藤浩市
as Gou Serizawa
宇梶剛士
as Mitsuo Kouno
藤木直人
as
黒木瞳
as
佐野史郎
as
岡田義徳
as
黒部進
as
伊藤正之
as
Takao Toji
as
松井珠理奈
as
