I was actually quite pleasantly surprised by this little thriller. No, it's not great and the quality of the acting leaves much to be desired, but the story is quite intriguing for a while. "Na-yeong" ((Bo-ra Kim) is an aspiring journalist who receives a curious tip from her friend at a nearby train station. "U-won" ((Jae Hyun Kim) is convinced that the body of a child that was found between the tracks died in very mysterious circumstances. Despite the obvious reservations of her boss, she talks to the child's family and discovers that the the site of the station might have many old and horrific secrets to keep. The two friends decide to delve into that past and reveal those secrets - regardless of those whom it may effect! It's quite a quickly paced little drama this that really could have been doing with a little better, stronger, casting. The visual and audio effects are adequate and the story is solid in a creepy sort of fashion providing a few twists and turns to a plot that easily puts this in the range of the average Blumhouse horror-lite offering. You almost certainly won't remember it after you've seen it, but it isn't terrible by any means.