Deliver Us from Evil

Daman akeseo guhasoseo is a movie starring Jung-min Hwang, Jung-jae Lee, and Jeong Min Park. An assassin goes to Thailand in order to solve a kidnapping case linked to him, and finds himself chased by a man whose sibling he killed.
A retired contract killer goes on a bloody rampage when a young girl finds herself at the mercy of gangland human traffickers and only one man can come to her rescue, with an arsenal of weapons and years of experience in the art of killing.