Duelist

In Joseon Dynasty Korea, a female officer investigating counterfeiters falls for a mysterious criminal, complicating her mission to stop a plot that threatens to destroy the nation's economy.

Duelist is a 2005 mystery romance movie directed by Lee Myung-se, starring Ha Ji-Won, Ahn Sung-ki, Song Young-chang. It holds an IMDb rating of 5.9/10 from 1,486 votes and runs 1h 48m.