When I was in the middle of watching the movie, I googled it and read the reviews, and I puzzled why a movie this compelling would have some bad reviews, and I later realized after finishing the movie that it deserved 2-3 stars out of 5.
The beginning of the film was excellent, the narration was excellent, and the film continued in that vein until it reached Chapters 3 and 4 and the conclusion. I can confidently claim that this film has one of the best openings and middles, but the climax is a disaster, the movie ends so terribly that you forget what happened in the beginning and middle and feel unhappy with the vibe.