Serial killer movies are getting old in general, but this was something new... and not in a good way. I wasn't rooting for the killer, but I was definitely rooting against the police. These police are not very interesting, and they're basically state thugs who relish beating people up (whether there's any real grounds to think they are criminals or not) and who are so lame that at one point they consult a psychic to assist with the investigation. I hated being around these characters

Good. A group of detectives are tasked with catching a serial killer active in Korea circa 1986. The film follows the under-equipped and under-trained detectives in their desperate quest, their extremely questionable interrogation techniques and gross abuse of the handicapped. All presented in a lightly humorous but still unambiguous, blunt manner. This film, like most foreign cinema, has its cultural quirks but the subject matter has been competently handled. A good production. Recommended.

A great thriller, has both comic and dark moments. In the end, this is a realistic and emotionally draining experience.

Really reminded me a lot of zodiac, both in terms of plot, theme, and ending, except that I liked zodiac better. Still, this is a well made movie that's simultaneously intriguing and ultimately frustrating. Also, you wouldn't expect it, but this movie has some perfectly timed, fucking epic dropkicks.

Great. And much better than Bong's overrated "The Host".

Serial murder mystery that effectively injects humour into an otherwise grisly plot. Detectives who are often incompetent and negligent provides a fresh twist on the standard investigation. Most of the humour works too only occasionally going over the line to absurdity. Kang-ho Song was extremely entertaining and intense when needed, by contrast Sang-kyung Kim is stunningly dull as 'the stickler' detective. The investigatons conclusion was well handled, but the coda felt a little overdone.

Like 'The Host' this film is so much more than it's genre.

Kind of a mix between Zodiac and 7even, if you know what I mean. A clueless police on the search for a serial killer, try to pin it on anyone they can, again they bring humour into the darkest of places and make it work. The fact it is based on a true story is scary, both because of the inept police and because of the cold hearted maniac.

Expecting a thriller, got a dud. I've been wanting to watch more of Kang-ho Song's films, seems I've picked the wrong one.

I really enjoyed this film. It understands that just because you're telling a serious story doesn't mean you can't have a sense of humour at the same time.

Flying kicks!

A fantastic mystery movie. Terrific ending. I can't deny it does have some melodramatic moments which go on for too long and are too intense to really take seriously. However, for the most part, it is a superb movie.

The ending (to this true story) defies all expectations, as does the film's humor and its portrayal of the police as well-meaning but frustrated and inept. Haunting and hilarious, and riveting from the first frame to the last.