Who's the Keyman explained

Native Name:	Child: yes Hide: no Header: none T: 我是大偵探 S: 我是大侦探 P: Wǒ Shì Dà Zhēntàn Order: st
Genre:	Variety show
Director:	He Chen
Narrated:	Zhu Jun
Country:	China
Language:	Chinese
Num Episodes:	13
Camera:	Multicamera setup
Runtime:	90 minutes
Company:	Hunan Broadcasting System
Network:	Hunan Television
Related:	Who's the Murderer

Who's the Keyman is a Chinese variety show produced by Hunan Television and Mango TV.^[1] The show features the main cast of He Jiong, Deng Lun, as well as resident guests Han Xue, Wowkie Zhang, Ma Sichun and Leo Wu.^[2]

The show is a remade version of Who's the Murderer.

Format

In a prologue, the cast is introduced to the settings and suspects of a crime case for the new episode. The cast then chooses their role in the episode, as a particular suspect or the detective. Other than the detective, each person is given detailed information about the suspect they are portraying including their personalities, alibi, relationship to the victim and other suspects, history, criminal motive, etc. Every suspect can conceal information until explicitly questioned by other suspects or the detective, but only the keyman can lie. The gold keys are given to the cast members beforehand. If they vote correctly, they can keep the gold key. If not, they will have to return it.

• Alibi: Each player introduces themselves as the suspect they are portraying, gives some background information about their relationship with the victim, and describes their whereabouts before, during and after the crime.
• On-Site Investigation: The players are separated into three teams, and given ten minutes to investigate the crime scene for clues. Each player is given a mobile phone, and is allowed to take a maximum of ten pictures.
• Briefing: All players present the evidence they have collected, and are allowed to ask other players questions concerning evidence. Each player voices out who they currently think is the keyman after their briefing.
• First Keyman Vote: The detective is allowed to make a vote on who he/she suspects after hearing each player's briefing. The vote is made secretly to all of the players.
• Additional On-Site Investigation: All the players gather at the crime scene for additional investigation and discussion. This segment is run at the same time as the 1-on-1 Interrogation.
• 1-on-1 Interrogation: The detective who is always innocent can summon the other players into the interrogation room for further questionings.
• Final Keyman Vote: After all of the players have been interrogated, the game proceeds to the final vote. All players makes their final statement and debriefing of the case would be conducted by the detective. 5 minutes of individual investigations would be permitted before each player secretly votes for who they think is the final keyman. The player who receives the most votes is arrested. If the right suspect is voted as the keyman, only those who voted correctly get to keep their gold keys. Detectives who vote correctly both times gets two gold keys. Suspects who successfully hides their identity gets one gold key.

In the final episode, all six cast members are detectives, and the keyman is hidden in the non-player characters. The players are separated into two teams, and the first two players with the higher number of gold keys are the team leaders. The two leaders will have to make a reasoning according to the conditions and clues, and they will help to identify the keyman. If the keyman is identified, each player will be awarded a gold key. Meanwhile, a gold key box is hidden in somewhere, the player who opens it will be awarded an additional gold key. The player who obtain the highest number of gold keys will be titled as "The Best Detective" .

Main cast

Name	Profession	data-sort-type="isoDate"	Date of birth	Appearance
He Jiong	Host, actor	28 April 1974	Episode 1–13
Deng Lun	Actor	21 October 1992	Episode 1–13

Recurring cast

Name	Profession	data-sort-type="isoDate"	Date of birth	Appearance
Han Xue	Singer, actress	11 January 1983	Episode 1, 3–6
Wowkie Zhang	Singer, host	31 August 1983	Episode 2–6, 9–10, 12–13
Ma Sichun	Actress	14 March 1988	Episode 2–13
Leo Wu	Actor	26 December 1999	Episode 1–6, 9–13

Episodes

Episode #	Broadcast Date	Guest(s)	Case Briefing	Keyman	Results
1		Zhang Ruoyun, Zhang Tian'ai	Background: The kids of Jia were missing Detective: Zhang Ruoyun He Loneliness: He Jiong Deng Cool: Deng Lun Waiter Lei: Leo Wu Xue Wuqing: Han Xue Customer Zhang: Zhang Ruoyun General Ai: Zhang Tian'ai	Leo Wu	Keyman won Arrested: He Jiong (He Loneliness)
2		Zhang Ruoyun	Background: Mr. Zhen was attacked Detective: He Jiong Director He: He Jiong Lun Ba: Deng Lun Zhen Chun: Ma Sichun Lei Haowa: Leo Wu Big Qiaqia: Wowkie Zhang Zhang Kuang: Zhang Ruoyun	Wowkie Zhang	Cast won
3		—	Background: The Heart of Malan was stolen Detective: Wowkie Zhang He Dazui: He Jiong Deng Youwei: Deng Lun Ma Shangyan: Ma Sichun Lei Xiuxiu: Leo Wu Da Baobei: Wowkie Zhang Xue Xiaoxiao: Han Xue	Han Xue	Cast won
4			Background: The Penglai Fairyland was destroyed He Dazui: He Jiong Deng Youwei: Deng Lun Ma Shangyan: Ma Sichun Lei Xiuxiu: Leo Wu Da Baobei: Wowkie Zhang Xue Xiaoxiao: Han Xue	Han Xue	Cast won
5			Background: Security Zhen was attacked Detective: Leo Wu He Shouwu: He Jiong Deng Xingao: Deng Lun Ma Daha: Ma Sichun Lei Haobang: Leo Wu Da Maha: Wowkie Zhang Xue Gao: Han Xue	Ma Sichun	Keyman won Arrested: He Jiong (He Shouwu)
6			Background: Zhen Ai was attacked Detective: Han Xue He Shouwu: He Jiong Deng Xingao: Deng Lun Ma Daha: Ma Sichun Lei Haobang: Leo Wu Da Maha: Wowkie Zhang Xue Gao: Han Xue	Deng Lun	Keyman won Arrested: He Jiong (He Shouwu)
7		Wei Daxun, Bai Jingting, Yang Mi	Background: Zhen Xin was attacked Detective: Deng Lun He Kuaile: He Jiong Deng Dadan: Deng Lun Assistant Ma: Ma Sichun Wei Le'ai: Wei Daxun Bai Mengxiang: Bai Jingting Mi Yue: Yang Mi	Wei Daxun	Keyman won Arrested: He Jiong (He Kuaile)
8			Background: Zhen Xin was attacked Detective: Wei Daxun He Kuaile: He Jiong Deng Dadan: Deng Lun Assistant Ma: Ma Sichun Wei Le'ai: Wei Daxun Bai Mengxiang: Bai Jingting Mi Yue: Yang Mi	Helper: Yang Mi Keyman: Ma Sichun The first episode to involve two keymen.	Cast won
9		Huang Lei	Background: Zhen Siba was fainted Detective: He Jiong He Bi: He Jiong Lun Bi: Deng Lun Ma Lanshan: Ma Sichun Wu Yu: Leo Wu Da Guangquan: Wowkie Zhang Huang Dou: Huang Lei	Leo Wu	Cast won
10			Background: Zhen Xiang was kidnapped Detective: Ma Sichun He Bi: He Jiong Lun Bi: Deng Lun Ma Lanshan: Ma Sichun Wu Yu: Leo Wu Da Guangquan: Wowkie Zhang Huang Dou: Huang Lei	Deng Lun	Cast won
11		Zhang Ruoyun, Kenny Lin	Background: Zhen Keai was attacked Detective: Leo Wu He Menmian: He Jiong Deng Youxi: Deng Lun Ma Touqin: Ma Sichun Zhang Tiemo: Zhang Ruoyun Lin Ke: Kenny Lin	Ma Sichun	Cast won
12		Zhang Ruoyun	Background: Various cases Detectives: Team Deng Lun (Leo Wu, Zhang Ruoyun), Team Ma Sichun (He Jiong, Wowkie Zhang) Lady Han / Tutor Han / Waitress Han: Angela Chang Cousin Fei: Ariel Li Steward: Kido Ma Assistant Liu: Liu Xuequan Tutor Jin: Jin Jing Trainee Wei: Wei Xun Trainee Jiang: Jiang Yu Gao Xing: Chen Xiang Gao Ya: Lu Shan	Kido Ma, Jin Jing, Chen Xiang	Team Deng won in Scenario 1 Arrested by Team Ma: Liu Xuequan (Assistant Liu) Team Ma won in Scenario 2 Arrested by Team Deng: Wei Xun (Trainee Wei) Cast won in Scenario 3 The Best Detective: Deng Lun
13

Ratings

|-| 1| | 0.905| 5.85| 4| 0.83| 6.3| 1|-| 2| | | 6.34| 2| 0.65| 5.26| 1|-| 3| | | 4.27| 5| | | 1|-| 4| | 0.812| 5.55| 4| 0.64| 4.98| 1|-| 5| | 0.826| 5.59| 4| 0.63| 5.16| 1|-| 6| | 0.607| 4.24| 8| 0.68| 5.38| 1|-| 7| | 0.814| 5.16| 5| 0.78| 5.81| 1|-| 8| | 0.808| 5.65| 7| 0.84| | 1|-| 9| | 0.923| | 4| 0.68| 5.91| 1|-| 10| | 0.758| 5.61| 7| 0.65| 5.61| 1|-| 11| | 0.788| 5.54| 10| 0.8| 6.56| 1|-| 12| | 0.894| 6.02| 6| | 6.61| 1|-| 13| | 0.667| | 5| 0.66| 4.08| 1

Notes and References

1. Web site: http://ent.163.com/18/0306/12/DC7D6UHJ00037VVV.html. zh:《我是大侦探》电影级实景曝光 复刻“沙漠客栈”. NetEase Entertainment. 6 March 2018. 7 March 2018. zh-cn.
2. News: http://zzwb.zynews.cn/html/2018-03/13/content_939309.htm. zh:热门综艺回归，能否带来惊喜？. Zhengzhou Evening News. 13 March 2018. 6 May 2020. zh-cn.