You Might Be The Killer (2018)

Chuck is working her job at the comic book store when her friend Sam calls up in a panic.  Sam's family owns a summer camp and he's the head counselor.   He and the other counselors have been getting the camp read for the arrival of the kids.

But things have gone horribly wrong and someone is killing the counselors.  Sam's afraid he's going to be the next to die and since Chuck is a horror movie fan, he figures she can help him figure out the killers next move.

Chuck urges Sam to stay calm and asks him questions to get an idea of what he's seen and who's been murdered. But Sam is having trouble remembering things and his answers don't always  make sense.  As she probes deeper into the events of Sam's night, Chuck realizes that things may not be as they seem and she asks if Sam's considered that he may actually be the killer.  Chaos ensues.

This is a fun movie, although I didn't always like the way it jumped forward and backward in time.  Watching Sam struggle with the reality of what is going on and piecing together what's already happened is amusing.  The lead actor was the stoner in Cabin in the Woods and Chuck is played by the always likable Alison Hannigan,