https://www.youtube.com/watch?v=5ZKjQxGpFcM
Viewing South Korean films, "I Saw the Devil" kept coming up, so I clicked on a YouTube review. I stooped part way into the review because of the subject/content/characters. Billed as a Revenge movie, it goes far deeper, as we see the Rapist/Serial Killer "hiding in plain sight." The protagonist, a South Korean Intelligence agent, can't leave his post, even though his pregnant girlfriend calls him from her damaged car. She doesn't survive the night. The next day, a kid finds a plastic bag by a river and looks inside. The Human ear sets off a massive Police search, capped with a severed head in the river. The Spy takes a couple of weeks off, has a colleague drop off some surveillance tech, and lines up four suspects to interrogate. Warning! This is a violent, gory, first-person look at the serial killer and the pursuing revenge-seeker that features torture, violent beatings, and bloody murder! NOT for gentle souls or the easily offended! Click on the link if you dare...