The Wicked Are Alive (2015)

Yoo-mi was once a high ranked manager for a financial institution and happily married. But his wife was murdered and the police was not able to find the killer. Yoo-mi is convinced that his wife was killed by the members of the financial institution he was working for. To avenge the death of his wife, Yoo-mi gets back to work in order to find her killers and to destroy the lives of them.