Watch Vapor (2018) Official Trailer

We are falling for each other as if we're meant to be. Do you want to be in a relationship?

There's emptiness in Nam-joo althoughs she's with the one she loves. She's tired of the same old life. Sung-wook becomes more and more discouraged next to his affluent wife. These two lonely souls meet on a train. They seem different but also very much alike?