Review *spoiler free*
The dialogue was poorly written in a lot of spots. But the acting was good.
Every character has a reasonable motive aside from a scene or two.
I never read the book so i don't know if it was originally a gay couple. Having the gay couple makes a lot of character sense for their motives and opinions.
Some people may see agendas, but I saw character's dealing with a crazy situation in a fairly reasonable way.
I liked it. It's not the best movie or the worst. It doesn't stand out among horror films. Theres no specific scene that wowed me.
You won't need to see it in theaters. It's tight in its scope and would be just as good on a TV.