Stained (2019)

Inspector Bo Fei Fung is suspected of being involved in criminal activities and betraying the police force after her husband Lau Wai Yi mysteriously disappears and becomes a prime suspect of corruption as a police detective himself. Through a series of cases based on real high-profile crimes from Hong Kong, she has to prove her innocence to fellow detective Kei Tak Sing and solve the mystery behind her husband's disappearance.