Pyewacket's payoff is a bit too meager given the creepy build-up. But as a psychodrama about a troubled mother and daughter, this movie is gripping from start to finish. Like a lot of the best horror, it's about the hells people conjure for themselves.

Pyewacket is a slow-burn chiller that is all the more impressive for its subtlety.

It’s the rare horror film that’s actually more effective in psychological terms than in suspense ones.

The heavy-handed score, narrow performances (Nicole Munoz as the repeatedly terrified daughter; Laurie Holden as the dense mum) and weak dialogue all fail to justify a provocative ending that overturns the exorcising conventions of the genre.