Unstoppable Episode 1

Dong Chul and Ji Soo are a happily married couple. Dong Chul was once a notorious gangster but he has changed his ways. One day Dong Chul comes to home to find his house in disarray and his wife missing. Dong Chul then receives a phone call from someone offering to pay him to give up his wife. Dong Chul vows to save his wife.Source AsianWiki