3. Mum And Dad - Mum & Dad (2008)
I think the alternate title to this should be "Never Trust Anyone That Lives Next to an Airport". Seriously, this family was just inches away from the planes. We learn very early that Mum and Dad are sadists, and they love sexually torturing people to death. What drives is this home is a scene where Dad masturbates and ejaculates into a piece of human flesh. Mum likes to cut people up, and sometimes serves the remains to the family. As if I didn't need another reason to never leave my house again, this was also based on real couple Fred and Rose West. Rose brought home young lesbians to kill, and was a prostitute that had many clients including her own father. Fred murdered one of his daughters, knocked up the other one, and eerily painted the torture dungeon a pretty blue. I think now would be a good time for me to build a bomb shelter, and never deal with people again.