OCN’s new drama ‘Train’ is about a man who lost her lover to a serial killer moving between two parallel worlds to uncover the truth of her death. Do Won is a fearless detective who is willing to take on any case, no matter how hard. But when the woman he loves becomes the latest victim of a serial killer, his world completely changes. After leaing that his deceased love may be gone in one world, but she’s very much alive in the other. Mysteriously able to move between parallel universes, Do Won decides to do whatever it takes to track down the killer in one world and protect his love in the other.