I expected action, special effects, drama and a twisted plot, and oddly enough, I saw it all in this film.
The movie is 2 hours and 20 minutes long, but it is watchable in the same breath because of the dynamics and the constant drama. The whole storyline on the plane is held together by the buildup of something horrible, unseen and unknown. After all, a virus in a confined space is not good. The degree of panic grows with every second, and the further you watch the movie, the more horrible and almost hopeless situations the plot throws up. We witness a thriller mixed up with a chamber genre and drama when we watch the passengers aboard the ill-starred plane, but the storyline on the ground takes a different course. The detective component is mixed in with the chases and solving mysteries in my opinion is the main part in the down-to-earth setting. Putting all these genres and sub-genres together, the Koreans crammed it all into a disaster movie. And after all this 'cocktail' keeps you in suspense from beginning to end, without giving even a little respite.
So I will divide my personal opinion according to the following points:
The staginess can be rated 5, the acting is also rated 5, the music and camera work are also not lower than 5. And the storyline is unusual, though not original. The graphics are slightly lacking in some places, but it is not as glaring as in the second part of the film 'Pusan Train: Peninsula'.
And if we compare the pros and cons, I won't hesitate to give the film a positive score. With a budget of 18 million 'evergreens' the movie holds a high bar of quality.
The content, the idea and the point are simple and understandable to every viewer, so I recommend you watch this movie. And even if you do not get a chance to see the picture in the theater, you should at least watch it at home.