It's just a little custom map with "many" jumpscares. This is for Pewdiepie , and there are many references of Pewdiepie in this custom, so if you are not a fan of Pewdiepie you can't understand and you can't follow the story :).
A Pewdiepie custom story, and this CS is just like most of them: Bad and waste of potential.
The only reason why I played this CS was because it had a rating of 8,2/10. This has to be one of the most overrated custom stories ever. The only reason why it has so many 10/10 votes is because of the pewdiepie fanboys: www.youtube.com/watch?v=PMEcXTSwalo