Joseon's top detective Kim Min attempts to track down those responsible for circulating massive amounts of counterfeit silver bullion in Joseon. He also tries to find the missing sibling of a young girl.
Detective K: Secret of the Lost Island is a 2015 South Korean period action comedy film directed by Kim Sok-yun. It is the sequel to 2011's Detective K: Secret of the Virtuous Widow and is the 8th highest-grossing Korean film of 2015.