Assassination is a 2015 South Korean period spy action thriller film co-written and directed by Choi Dong-hoon. The film, mainly set in 1930s Seoul and Shanghai during the Japanese occupation of Korea, depicts a group of Korean resistance fighters' plan to assassinate a highly ranked Japanese officer.

Plot

In 1911, during Japan's rule over Korea, a resistance fighter named Yem Sek-jin tries but fails to murder the governor-general along with a pro-Japanese businessman named Kang In-guk. That evening, Kang discovers that his own wife was helping Yem, and kills her. In response, the wet nurse runs off with one of Kang's twin daughters. By 1933, there are over 30 Korean independence factions operating in Korea, China, and Manchuria. Yem has become a captain in one of these factions, but his colleagues are unaware that he is secretly reporting to the Japanese, since back in 1911 he was tortured by the Japanese into submission. Yem meets with some Korean politicians in Hangzhou, including Kim Koo and Kim Won-bong, and is asked to gather three delinquent resistance members—Big Gun, Duk-sam, and Ahn Okyun—so they can enter Seoul and assassinate Kang, along with a general named Kawaguchi Mamoru. After bringing them to Shanghai, however, Yem sells this information to the Japanese. The Japanese attempt to find Ahn, but a skilled contract-killer named Hawaii Pistol decides, on the spur of the moment, to pretend that Ahn is his wife, allowing her to elude the soldiers.