(spoilers) I really like this movie but if I was completely honest, there were a few flaws (which I won't get into). I will talk about my favorite parts of the movie. I really liked how there was a side-by-side of the psychotic doctor attempting to kill the father, and on the other side were Trent and Maddox trying to get away from Chrystal. In the end of the scene, the doctor was poisoned by the mother, while Chrystal died from her calcium deficiency. I also really liked how you never really knew what was going to happen next. You didn't know who would die and who would survive. In the end, only Maddox and Trent survived.
Overall, 8.7 / 10.