This movie is about the encounter of former intelligence agent Ki Heon and Seo Bok, a human clone whom the mere existence might have a huge impact on the globe if made public. The story is not really original in terms of concept as well as pacing and resolution but it hits at the right times the right notes, making it an entertaining watch.

The biggest flaws in terms of the story relies in its villains which are really dislikeable and lack too much of nuances to be interesting. The dialogs between Ki Heon and Seo Bok with some of their most peaceful moments really strike a chord with me but at the same time, it was totally counterbalanced by the antagonists scenes which were worth quite a few eye-rolls.

The acting was amazing. It is a well known fact that Gong Yoo and Park Bo Gum are great actors, and here they are really stellar and bouncing back on the talent of each other. The secondary cast did a good job overall despite the lack of subtlety and substance for some of the roles. Moreover, the foreigners performances were okay overall and not distractingly bad like it can happen sometimes.

The production value was really nice. I was super impressed by a lot of the action scenes, with both main male leads totally credible in it. The props, accessories and scientific aspects of the film were well conceived and believable. The soundtrack did not necessarily leave a deep impression on me but was suitable.

I would recommend this to people looking for an action movie with a sci-fi angle and some stellar acting. It is not original at all and the antagonists actions and dialogs can be a little cringe, but if you love Gong Yoo and/or Park Bo Gum, it is for sure worth the time.