From beginning to end, the film maintains a high level of tension and suspension. It often happens that a movie has a great start, but it gets diluted in the second or third part and then I can't wait for the movie to end. But the director managed to introduce new interesting elements throughout the film so that the whole film has something special to offer. The beginning is interesting because we get to know the main character and his unusual hobby of following other people's lives. The plot is interesting because through a sudden event, it gradually reveals hidden details from the life of the protagonists, and the conclusion of the film leaves us something to think about the personality of the main character and thus completes the whole story. The actors all did a great job here.

The film also has a social message about CCTV surveillance, which is useful when you need to find a criminal, but too many cameras also provide opportunities for greater manipulation. In today's world, virtual life on SNS (social networks) can be very brutal and has a huge impact on people's real lives.