The film tells quite a unique story of cops joining forces with gangsters to go after a serial killer.
If you single out all these elements (cops, gangsters, a serial killer, a cop teaming up with a gangster), then I've seen and enjoyed them many times before and yet, I don't think I've ever seen them all come together like this.
So, a unique story that relies on well known archetypes. I thought it handled them well enough.
However, if you're looking for a very plausible story line and a masterful intricate plot, well that's just not what this is about.
It's more of a fun, entertaining and somewhat gritty movie that mostly revolves around the dynamic between the cop and the gangster.
As such, it was also my main source of enjoyment while watching it.
I also liked the cinematography, the acting (cop, gangster and serial killer), action sequences and fight choreographies. It also has a comedic aspect to it, which surprised me but was very welcome and appreciated.
Ma Dong-seok's character was the one that stood out the most to me, then the cop. Like I said, the main strength of the film is the dynamic between them. At least that's how I experienced it.
One thing that frustrated me during this film is the dynamic between the cop and his superior. The dialogues were overly repetitive and I think that this is a good example of where the film is lacking.
There isn't a lot of depth in this movie and it suffers from it. Especially when you start to stray away from the dynamic duo (cop and gangster).
That's about it. I had a good time watching it and I'd recommend it to those who enjoy these kinds of detective stories and want to have some fun but don't expect exceptional writting and depth.
I give it a 7.5