Name of movie

Can’t get this out of my head,a movie where a scene takes place where character booby traps doors to a swimming pool possibly in a school? He ends up possibly dead in water maybe knifed

Can It Follows (2014) be ruled out? https://en.m.wikipedia.org/wiki/It_Follows

I have a feeling it might have been the purge ? I think the baddy was some sort of handyman taking revenge on all the people who he worked for maybe wrong I think there was a scene as well where he had victims locked inside a cage in what looked like the school hall

2 Answers

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Maybe?:

No that’s not it,I think the baddy booby trapped every door possibly a janitor? There was something about him being difficult to kill ended up in water with blood filling water

I found it myself it was the purge season one episode 9/10!