Great premise, strong acting and effective atmosphere completely undermined by a bland screenplay that has no faith in it's audience. The first 30 minutes of The Power is really engaging. The strong cast led by the extremely charismatic Rose Williams as Val carries the movie through the standard expository section of the plot. Unfortunately, once this ghost story gets into it's second act the movie devolves into a series of cliché's, poor plotting and heavy-handed monologues.
The script is all text and zero subtext. Instead of generating a sense of the uncanny or ominous feeling, The Power leaves the audience with the impact of an after school special. Strong window dressing with all of the depth and emotional resonance of a cardboard sign on the side of the road.

Rundown facility, run down people, rundown humanity.
Super creepy atmosphere in this building, with eerie sensations, spectoral apparitions, and unseen forces.
So much distrust and gossip from many of our staff who are far too lazy and overly comfortable in their positions in life.
Beautifully haunting and all the tropes of a classic haunted facility.
The eventual possession of the only one who cares, and the pain inflicted upon them makes me smile my black grin, from my black heart.

The silent will be, must be heard...