I was quite disappointed by this action movie. More specifically because the most interesting aspect of the plot (with the submarine scenes, all involving a deep and gutwrenching psychological aspect) is only coming up past the 2/3 of the movie. I'm left to wonder if I would not have appreciated much more the film if it had been edited in another way around rather than creating a false suspense regarding the identity of the antagonist.

The performance of the casting was overall good but not stellar. At the end, surprisingly enough, it is two of the guest roles (played by Cha Eun Woo and Lee Min Ki) that grabbed the most my attention. I wish that Lee Jong Suk would have been given a bit more room to shine and do more in terms of dialog as well as characterization. Once again, maybe a different edit of the story would have allowed to have much more powerful stakes for the story.

Regarding the production value, it was pretty good. There are some rather thrilling action sequences and good ideas in terms of directing. There are a lof of variety in the dangerous situations faced by the main protagonists. The soundtrack is quite absent from the movie, not that memorable but there is a pretty sorrowful song that I enjoyed during the ending generic.

I would not necessarily recommend this to people as I did not particularily enjoyed my watch. My main issue with the film is coming from the scenario and the way the story is building up the characters. I did not manage to engage with the main roles and in an action movie, rooting for the good guys and understanding from where they are coming from is critical to really get me invested and care about the story. Here, I started to care much too late and felt that the 2/3 of the movie was not as exciting as I would have wished.