The way the movie started, I felt it might be a real loser. A man, clearly beaten, manages to escape his binds, and then gets into a fight with one of the captors. He manages to get a knife, but hesitates, which of course is a bad idea. It then switches to Adam picking up Erin to go to his parents house, which is very isolated. On the way, they pick up his brother Michael and Sarah. The parents seem a bit strange, and at dinner offer their special drink. Of course it is drugged, as the parents are in the business of harvesting blood, rich in adrenaline, which they get by terrorizing their captives. And they have apparently a basement full of captives. But it turns out Erin is not just some young woman. At age 4, she was kidnapped, tortured and abused for 15 years before she could make her escape. And her captors didn't fare well. There is plenty of gore, blood and killings which should satisfy most viewers. It is basically an action film to be accepted on that basis.
