Don't listen to the guy who claims this is terrible, it's an okay thriller. Just okay though. The Korean original, "A Hard Day", from 2014, is better. While the differences in the events that unfold in the two versions of the movie are minor, the differences in acting and directing are more palpable. The actor for the main character in the Korean version does a much better job, and even aside from that, the personality of the character he plays is different from that of the one in the Chinese version, and well, the way he is portrayed in the Korean version just seems a lot more fitting and realistic. Same with the directing too; Just as an example, in a scene in the Chinese version where cheerful music plays, and the main character drives off laughing, the Korean version of the same scene has him being stressed and panicked, and serious music playing. That isn't to say that there aren't plenty of serious scenes in the Chinese version as well, but it's just..I don't know, overall, it just feels a bit off somehow.
This is a decent watch, but having watched both versions back-to-back, I say just go with Korean movie. It is definitely the better of the two. I would give this one a 6, and the Korean one a 7 or 8.