Hard to take seriously
When it throws up the antagonist/s as a very old lady and her husband, which it does very early on, then it's hard to take the threat seriously. You spend a lot of the film wondering how essentially a pair of zombies from Night of the Living Dead can wipe out all these young people in one night.
Lorraine was also a very contrived character. It was weird how she did a u-turn on being a prude about the porn to actually wanting to participate. She has the audacity to call her boyfriend out for being insensitive that he doesn't allow her to have sex with another man all of a sudden. Then it occurs to her later on she may have hurt his feelings? 😄 It's that silliness that leads to the killings in the first place.
Film was ok. Just not very scary and pretty contrived.