If you are a regular watcher of OCN thrillers, then the plot of Train is exactly what you would expect from them. A unique twist on murder mysteries, this time instead of time travel they explore the concept of parallel worlds. The story focuses on a serial killer who travels between worlds using a mysterious train which connects them together. Seo-Do Wan sees the love of his life murdered and as he is on the verge of taking his own life, a train appears as he latches on to it bringing him to another world, where everything is just a little bit different, but here his love is alive. The story unfolds as he tries to find the real killer, while trying to protect his loved ones as well. Despite it being a 12 episode show, the story does start off rather slow, building the foundation of the story and introducing the main characters, but after a certain death, it picks up in speed fast.

As with most OCN dramas there are a few twists, and the first few can be expected, but the last episode.... the last episode was done so well, with a huge reveal, and an ending that left me not happy but content. (In a Good Way)

Yoon Shi Yoon and Kyung Soo Jin were the stars of the show, and they both showed their duality by portraying their characters in both worlds perfectly. As a huge YSY fan, he has never let me down in double roles, and he did a great job portraying Do-Won A and Do-Won B.

All in all it's just what I would expect from an OCN thriller, and they did not disappoint. If you're hesitant to watch, just do it, it's a well written mystery show that does a great job explaining and exploring parallel worlds.