20 Horror Movie Scenes That Make Absolutely No Sense

Plot: After her grandmother dies, Heather Miller (Alexandra Daddario) goes to collect her inheritance with some friends, but discovers the serial killer Leatherface (Dan Yeager) hiding in the house.

This one applies to the whole film. There are so many ridiculous moments that it'd seem unfair to pick just one. 

Heather is a baby in the opening scene, and the bulk of the action takes place in 2012, where she's played by Alexandra Daddario, who was in her mid-20s when this movie was filmed... she should be nearly forty years old! It gets worse, though. 

Heather is given a letter from her grandmother when she arrives at the house, and she can't be bothered to read it until the very end of the film. If she'd simply read that letter, she'd have learned about Leatherface. Several characters die in the most avoidable ways. The movie paints the police department as villains for killing Leatherface's family when they were a bunch of serial killers. 

And finally, there's the ending. The now cartoonishly evil police department leaves Heather, who's actually Leatherface's cousin, tied up to lure Leatherface, whom she then teams up with, even though he's murdered her friends and tried to kill her many times. At the end, Heather even tosses him the chainsaw and yells, "Do your thing, cuz!" Poor Alexandra Daddario looked pained when delivering that line, and who can blame her? 

This is a strong contender for the most nonsensical horror movie of all time.