TL;DR: This was a mixed bag but ultimately quite boring. Unless you are a huge Cusack fan you can safely skip this one.

The production overall is fine and sometimes the effects are effective but the story is barely there and feels quite manipulative in order to elicit an emotional reaction. Also the sound design was pretty bad, to the point of being distracting at times.As far as performances go it was cookie cutter, nothing that bad but not anything great really.
However, in Horror I can overlook almost everything if the movie gets my blood pumping. This is just not scary. At the very start there is tension and intrigue there but as the movie establishes, however loosely, the rules and the how things are going to work it all falls apart.It did not know what kind of horror it wanted to be , it starts out subtle but it went off the rails at a certain point and then it tried to go back and forth which just does not work at all. [Not really a spoiler but it might tip you off about something] [spoiler] The "twist" is just laughably predictable, so much so that I came to doubt it was really intended to foul me. [/spoiler] Overall this is a meh if I ever saw one.