"Detective K: Secret of the Virtuous Widow" is a South Korean historical mystery film released in 2011. It follows the adventures of Detective K, a clever and resourceful investigator in the Joseon Dynasty, as he seeks to solve a series of murders linked to a mysterious widow. The film combines elements of comedy, action, and intrigue, showcasing the detective's wit and charm. As Detective K delves deeper into the case, he uncovers secrets that challenge societal norms and reveal the complexities of human relationships. The film features a blend of engaging characters, including the virtuous widow, and highlights themes of justice and morality in a historical context.