The Advocate: A Missing Body (2016)

Byeon Ho-sung is a hotshot lawyer at a big law firm; with a nearly 100% win rate, his life motto is 'Winning is justice, and I am the winner.' In a murder case, to ensure his win, Byeon goes out to prepare a false witness. However, on the last day of trial, an unexpected turn of events results in Byeon losing the case.