Detective K: Secret of Virtuous Widow

Detective K: Secret of Virtuous Widow (2011) is a South Korean historical action-comedy you can watch online on iFILM, directed by Kim Seok-yun. The Joseon dynasty, 1782: King Jeong-jo reaches past the official channels and summons a disgraced detective to work a case the court would rather leave closed — a series of killings tied to corruption inside the government itself.

Detective K is not the type to play by court protocol. Paired with an erratic but resourceful sidekick played by Oh Dal-su, he pulls on a thread that unravels into a full conspiracy. The film earns its genre listing: the mystery is actually plotted, the slapstick lands, and the period setting feels grounded rather than decorative. It launched one of South Korea's most successful detective franchises. Stream Detective K online on iFILM.