recommend me some good korean films please!

anything that has horror, crime, action, anything among those lines = 3 =

but you guys should REALLY watch this one movie called silenced its about a school for deaf children and the princpal, chief of administration, and a teacher of the school molesting children that attend it. its really filled with drama and its sad that yesterday i cried because this kid named minsu (who looked exactly like myungsoo from infinite) got hit by a train ;n;