There are many negative comments for this movie, but I enjoyed this movie,
Yes, it's definitely not the best, but at least it was entertaining.

Watched this movie because of Song Ji-hyo, and clearly I wasn't disappointed by it.
The basic plot of the movie is that Ji-hyo is an assassin tasked with killing the ML. She appears to be clumsy, but is a very good killer, and thus fooled ML into thinking that she doesn't know how to do her job.

Following her are a bunch of cops, who suspected that Jackal will be in that hotel to kill a person there. They laid out a trap and waited for the moment to catch him/her.

The comedic moments are many, some forced, and some actually funny. The dynamics of the cops is what I liked the most. Oh Dal-su is a very seasoned actor and time and time again he shows why he is rated so high.
Even in this rather dull movie, he managed to leave a positive impact.

As said, I watched this movie purely because of Song Ji-hyo and the comedy it promises. I enjoyed this movie. Yes, there were many faults, but I didn't have high expectations from it.

Have fewer expectations and you will be less disappointed.