Korean thriller written and directed by Kim Jee-Woon. Set in 1920s Seoul, the film follows Korean-born Japanese agent Lee Jeong-chool (Song Kang-ho) as he attempts to uncover members of the Korean resistance movement for his country's occupiers. With the resistance smuggling in explosives from Shanghai in order to bomb Japanese strongholds, Lee is tasked with exposing the leaders before they can orchestrate the attacks.However, after tracing the operation to an antiques shop run by Kim Woo-jin (Yoo Gong), Lee soon faces a crisis of identity as the charismatic Kim senses an opportunity to use the Japanese agent for his own gain. The cast also includes Han Ji-min, Shingo Tsurumi and Lee Byung-hun.