The girl was so far up her own ass!!

I hate characters like this; just because she's moderately good-looking, she manages to get away with *beep* murder. First, the guy catches her in his house, but because she's kind of cute, he's all like 'oh no, wait, don't go' etc (while she's being an outright dickhead about HER being in HIS house), instead of telling her to get the *beep* out as he would have done if she was a guy. Then she spends the next two thirds of the movie being an expectant bitch - telling him to do stuff, telling him to stop asking questions, and blatantly manipulating him with her sexuality - AND HE JUST *beep* TAKES IT. Just because she's moderately cute. Way to portray guys as weak willed and total slaves to their sexuality, director.
As for the film itself - it was dreary, unimaginative, and just chock-full of unbelievable occurrences. In the opening sequence, the dad drowns the mother in a *beep* TOILET - what *beep* toilet can you put your face in until it reaches the water?? - but, more than that, SHE DOES NOTHING TO TRY TO STOP HIM. She doesn't put her arms on the ground to try to push up, she doesn't try to push his hands off - she literally flaps her arms about for about five seconds, then dies. I've watched a lot of horror films, and that has to be one of the most pathetic deaths I've ever seen. Then, the bit where the mother/aunt drowns the guy in the sink (again, without any real struggle, and again, over in about five seconds), and the other two JUST RUN THE *beep* OFF! Thanks, guys. OH, and don't forget the bit where they plan(and manage) to kill a guy who's chasing them with a spade by throwing gasoline on him and then setting him on fire by touching him with a lit match. While running. Outside. Before he gets close enough to hit them with the spade. Then, we get to see the guy who was drowned in the sink wake up, and get up slowly, then we cut back t the other two getting into the car. Then, THE DROWNED GUY IS IN THE BACK SEAT. HaHA, I'm a zombie now, and we all know zombies can teleport! In YOUR face! And the way the dad died at the end - I actually just shouted "Oh just *beep* OFF!!"
Add to all this the CONSTANT 'oh I'll just go and investigate this on my own', and 'quick - hide in this bit here, it's perfect because it DOESN'T have an escape route, see?' tropes - didn't we do away with that when *beep* Scream came out, followed by the plethora of satires lampooning this stuff? None of the 'scares' were even moderately frightening or original, and none of them could be described as anything but cheap. All the characters were one-dimensional - no depth or development whatsoever. If I had to go through the movie and describe the traits of each of the characters, I'd be stumped. There was NOTHING to ANY of them, so I couldn't have cared less what happened to them. Actually, that's a lie, I wanted them all to be graphically fisted to death by a demonic monstrosity. That would have been a worthy ending.