I can't remember the last time I gave out all 10 for a drama and with my recent drama -drought Train brought the perfect thrill back that I was missing!

3 things in this drama are truly amazing. The story, acting & the ost.

A very simple idea but properly written and then properly executed. Recently I'm really hard on the stories I read/watch. Always looking for mistakes. But I could hardly find any plot-holes here. Which such a big thing when you are writing stories with slight time/parallel universe in them. So many places you can mess up. But I couldn't find any here. The story was written flawlessly!

The cast was amazing. I loved the main lead and for me he basically made this, this amazing character that he was given into life. Absolutely loved his acting. His expressions were so good! And the female lead too. The different between the two characters she played. Wow. And others too. Loved it.

The OST was sooooo good!! It was perfect with the theme of the drama and really made the scenes more alive. The vide it gave off , wow. Totally made the moods. Loved it.

This for me is one of the best OCN dramas I have seen so far. On top with Tunnel it stays.

Totally recommend others to try this if they haven't watched it.