Who Is the Murderer (2021)
Original title: 谁是凶手
Who Is the Murderer is a 2021 Chinese-language crime series. It stars Zhao Liying, Xiao Yang and Dong Zijian.
Sixteen years after a botched arrest leaves a serial killer at large, a guilt-ridden cop and a determined intern reunite to uncover dark secrets and catch the real murderer.