●PLOT VIEW
Why did I even choose this movie to watch at midnight, It scared me to hell but then it was still the first half, while the second half is the explanation of the first half which was fine. It had all the substance of a thriller movie, creepy setting, murder mystery, sci-fi backdrop with a chilling story.

The plot was developed beautifully, I tried making guesses but was not able to predict, Firstly it seemed like a horror genre, then suggest as a murder mystery and then a thriller.it plays with your mind and keeps you on edge until the end. I paused at the point and tried to question what is really happening and who is the elder brother actually, Quite frightening for me. Anyone if finds herself/himself in that situation would probably feel the same. The ending is gloomy, two apparently good guys are eroded in their own created doom.

●ACTING/CAST
All the actors did an exceptional job creating this incredible piece. Kang Ha Neul definitely deserves praise for top notch performance. His emotions, expression was to the point and I actually got swept away with his acting.

●APPRECIATION
The writer-directors did an amazing job with the shift of genre and manipulating the audience delving into a deep dark story.

●REWATCH
This movie deserves a rewatch, but I would not be able to do that because of its excessive and horror moments.

●RECOMMENDATION
This is a movie if for people who want an excellent thriller movie where they had to keep guessing that what's gonna happen. The film had lots of curse words so it should be watched under parental guidance if below 16 and many of the scenes are also violent.