One of the amazing things about South Korean cinema is how many great movies are made by first time directors. Kim Hyeong-Joon's No Mercy is a great crime drama with an involving plot that I don't want to give anything away about. It stars Sol Kyung-Gu as a University Professor who helps the police force with autopsies and forensic evidence. Just as he is about to retire (you always know something bad is going to happen when a cop or someone related to law enforcement nears retirement) he drawn into one last case. While the autopsies are not bloody, they are pretty graphic. Netflix has it streaming. Here is the unsub trailer (so you don't understand the spoilers unless you speak Korean). For those of you with out Netflix, the movie is up on youtube.