This sounds exactly like my kind of movie. Not to mention it’s being made by Bong Joon Ho, made one of favourite movies (across all genres); Memory of a Murder.

While his later movies are excellent (Okja, Snowpiercer, Parasite), Memories of a Murder benefits from a more indie vibe, a less polished presentation and a more eclectic style. Check it out if you liked his later movies (I would recommend watching it in Korean with subtitles).