The film's similarity to many horror films is on purpose. And it gives the film a vibe of being defensive. As if when someone points out that it lacks of originality, they can just say it's part of the plan.
"Our characters even said multiple times in the film that the film copies other films and it's so lame lol," say the film, imaginatively.
Feels kind of tacky, passive-aggressive, and trying too hard.
But that's not it. It lacks of…