Mu Xia is a talented locksmith. While dealing with a strange murder case within a locked room, Qin Zuo Man inadvertently discovers that Mu Xia is the new security consultant hired by the police academy. As more locked room cases arise, the simple-minded Qin Zuo Man, the monotonous Mu Xia and celebrity cop Tan You join hands to form an investigative team that seeks to uncover the truth through every door.
Jin Shijia
Mu Xia
Chuai Ni
Qin Zuoman
Chen Yilong
Tan You
Zhao Yuanyuan
Shang Weiwei
Xiao Shunyao
Li Yanjun
Zhang Lei
Dr. Wu Xiaodong
Xie Chengying
Yang Xue
Shi Zichen
Wang Ming
Zhu Yaying
[Yue Qi's mother]
Silk Stalkings61%
Nemesis75%
77 Sunset Strip72%
McDonald & Dodds76%
Baretta65%
The Glades69%
Moonlighting75%
The Streets of San Francisco70%
The Hardy Boys / Nancy Drew Mysteries71%
Dragnet69%
Kojak71%
Strike71%
The Shield81%
Motive64%
Hunter71%
Barnaby Jones70%
Starsky & Hutch72%
Midsomer Murders74%
Sugar71%
Hart to Hart68%
