Parayste:The Grey is a spin off of Japanese Manga series Parasyte.
Like most Korean series, this one is competently done. There's a balanced mix of sci-fi/horror/action off set by quality character development. As a consequence, this series has a depth and sense of realism, you don't always find, in series of this kind.
There's a nod to Invasion of the Body Snatchers, which is the most obvious point of comparison, with this series. Special effects are well done and further build the atmosphere of a normal world that's suddenly faces a familiar and at the same time, alien, other.
