Private Eye (2009)

"Private Eye" is a 2009 Mystery movie directed by Park Dae-min and starring by Hwang Jung-min, Ryu Deok-hwan. The story takes place in occupied Korea at the start of the 20th century, where a young student in medicine discovers the murdered body of the son of a government official. Being scared of being accused, he decides to hire Hong Jin-ho (a detective) to help him find the murderer before the police accuse him of the murder.