When the killer returns 35 years later, Jamie Hughes (Kiernan Shipka) finds herself thrust back in time and attempts to stop the first murders ever happening using the true crime podcasts about it on her phone.
No good will come of this.
CW: it's a slasher movie laden with 80s slasher movie stuff, but mostly comedically
This is comedy horror done a la Happy Deathday, Freaky etc.
Here the conceit is that a school science fair "Time Machine" project actually works (just go with this) propelling Jamie into the 80s just as she's about to be caught by the killer.
They do a ton of "oh god the 80s were awful" comedy lots of it of the "it was a time before wokeness" variety and I've got to say it had me laughing a lot.
Needless to say Jamie runs into younger versions of loads of adults from her life who are mostly awful 80s fratboy/mean girl teen caricatures.
Trying to stop the killer gets a bit Butterfly Effect and you can tell it was done on a low budget even for something that Blumhouse had a hand in.
It does mostly work though and definitely brightened my evening 7/10 worth a look if you like comedy horror. It is not thoughtful or serious at all, 100% bubblegum.