A very brilliant family drama turned into an inhomogeneous, forced horror mess

Rating: 6/10 (9 July 2018)

When all the critics decide to super-hype a movie and call it our generations' The Exorcist, and basically declare it a scariest movie of all times, a person tends to form certain expectations. And these expectations were, in my case, pretty damn high.
And I love horror movies. Everybody loves a good jump scare, as do I, but my favorites usually tend to be the slow-burning ones.
So this, naturally, seemed perfect.
Hooooowever.
What I got, was a brilliant hour and a half of family drama (a genre I normally tend to avoid, really not my cup of tea) spiked with horror, and when I say horror I mean some genuinely horrifying moments - not the supernatural horror kind of horrifying, but actual-real-life-horribly-awfully horrifying - with amazing Toni Collette seemingly losing her mind, and the whole thing is so awesomely done you are almost ignoring the fact that, well, the story isn't really going anywhere, although the film uses a pretty classic form of storytelling, and the story IS supposed to go somewhere, anywhere really, or, you know, maybe even nowhere, and just leave you right where you are, asking yourself wtf just happened, not that I'd like it after the whole Exorcist hype, but... but the one thing you really don't expect, the thing that becomes painfully obvious in the last half an hour or so, is that it will quickly and irreversibly go down the idiot lane, and just end there, wanting you to believe that it's where it was supposed to end all along, when in fact you know that somebody just used footage from another movie and photoshopped main actors' heads there, because the producers lost the original ending in a terrible accident and just lost their minds and decided to pretend like nothing happened, and instead of postponing the air date, reshooting it and giving us the ending we, and this movie, truly deserved, they did THIS.
Giving it a 6 because the family drama was done WELL.
The horror might have been interesting too, unfortunately I have only seen the ending and some 'clues' that were equally forcefully introduced earlier, and it seemed kind of over-the-top, but you never know, the rest of the movie could've been OK.
I just wish I saw a complete movie. Either of the two.