Korean dramas similar to Train and The Ghost Detective

@Lou I've already watched terius behind me (it's cute) but looking for something a little darker, with higher stakes and more of a race against time feeling 

 Lou:

Then definitely try "Justice". It plays a lot around with glimpses and hidden themes.

"Missing: The other side" revolves around 2 male characters and both have someone they either are in a relationship or work together. The one with work would fit into those subtile stories.

Now that I think of it
Mad Dog - this drama might also be something for you. There are lots of hidden glances and subtile things going on between the female lead and the male lead. 

So I was halfway through the first episode of children of a lesser god when I found out about the accusations against the ML's and I just stopped. I know there are certain discrepancies in his case but until it's outright proven that he's innocent I can't see him the same way. Especially given the recent brutal case in my country. Its a bit of a touchy topic right now and I couldn't focus on the show once I knew. So dropped it....let's see if I can find something else