Immediately things get spooky: the family dog refuses to enter the house, they find their clocks stopping at the same time in the middle of the night and the youngest daughter makes a new invisible friend
After some actual violent manifestations, Carolyn Perron (Lili Taylor) approaches renowned ghost hunters Ed (Patrick Wilson) and Lorraine Warren (Vera Farmiga) for help.
CW: plenty of jump scares
Another haunted house/possession horror this does great retro ghost hunting vibes. Being set in the 70s it's big on catholic exorcism and the sort of 'paranormal investigation' that involves film cameras, lots of stuff with shoulder straps, wires and bulky tape recorders.
It initially intersperses the Perrons' experiences with showing the Warrens doing other work, nicely establishing their credentials as the people to sort this out.
Once they're on site it's very Exorcist/Omen/Poltergeist and commits to it with full people and furniture getting thrown around shenanigans.
It does this really rather well.
Again it's well cast, particularly Lili Taylor as the increasingly frazzled Carolyn.
They don't resort do any weird metaphorical stuff, things fall down, doors slam, lights flicker and spooky figures are visible only to the more sensitive characters. It builds to a pretty full on conclusion that is both very retro but also great to see.
8/10 very well executed trad as fuck haunted house horror. Nothing innovative happens but it is done very very well.
One weird thing it does is state "actually the Salem witch trials had real Satan worshipping witches who murdered babies" that goes against the grain. It _is_ set in 1971 so I guess they're going for that as retro opinion, but even then it would have been incongruous outside of trashy 70s horror fiction.