Korean shows and films about serial murder have made a huge inpact on the crime genre and this one is just an excellent example.
The story is great, but the fights and struggles definitely take the cake, they are raw, ruthless and while watching you can't help but feel actually scared of what human beings are capable of. Even though this show is fully fiction it definitely got some inspiration from events of the real world. The way it portrais psychopaths and victims of violent crimes are proffessionally executed.
The actors and actresses are definitely very talented, mainly our two main characters that created a bone-chilling atmosphere for this show.