Wow. This was really, really good. Honestly, at first, my expectations weren't too high, but this drama really went beyond what I expected. The characters and the plot were all so well constructed and despite its lack of romance (which is a staple in most k-dramas), it was SERIOUSLY good. If you're into horror, mystery, and that cult-psycho-people kinda thing, I 100% recommend this. And even if you're not into that stuff, YOU SHOULD STILL WATCH IT.