1900s, Seoul, Korean Empire. Hong Jin-ho is a down and out detective. He makes his living mostly by catching cheating spouses, until a corpse is discovered in the woods. A rich man's son is dead and the killer must be found. Gwang-soo, a medical student, teams up with Jin-ho to solve the murder. But what they discover is a conspiracy far more evil and sinister than anything they imagined. Private Eye is South Korea's answer to Sherlock Holmes.

Originally released as a motion picture in 2009. Includes bonus features: trailer ; making of.