- Title: 查某人
- English title: Mrs P.I.
- Genre: Family
- Episodes: 20
- Broadcast network: MediaCorp Channel 8
- Broadcast period: 2010-Nov-08 to 2010-Dec-03
- Air time: Monday to Friday 21:00-22:00
- Opening Theme: 等 Wait by Liu Hui Qi (刘慧祺) & Wang Min Hui (王敏惠)
At the funeral of a woman who has accidentally fallen to her death, three housewives become acquainted with each other. Dai Xiumei is an ex-policewoman who has a penchant for serving the neighbourhood. Yan Feixue is a typical "auntie". Qiu Shuangxi is part-timing in cosmetics sales. The trio finds the woman's death suspicious and decides to investigate further.
Xiumei then decides to start a private investigative (PI) agency and ropes Feixue and Shuang Xi in to help her. Together, the trio opens for business and began to solve cases of neighborly issues.
- Michelle Chong as Dai Xiu Mei
- Cynthia Koh as Yun Fei Xue
- Apple Hong as Qiu Shuang Xi (Phyllis)
- Zheng Ge Ping as Guo Ren Jie
- Zhang Zhen Huan as Gao Xiang
- Yao Wen Long as Chen Wei Zhong
- Cavin Soh as Zhang Yong Jun
- Alan Tern as Zhang Jia Qiang
- May Phua as Tiffany
- Jerry Yeo as Ah Shun
- Joey Fung as You You
- Zhang Wei as Chen Cai Fa
- Kimberly Chia as Guo Jia Xin