I have a few, but that does depend on what level of fear you can stomach.
So from softer horror Trick 'R Treat is a good choice four stories for the price of one. For the classic The Haunting of Hill House, American Werewolf in Paris, Night of the Living Dead, or The Fall of the House of Usher are all good. Insidious and The Conjuring are both scarier horror but those tends to linger. Fallen is an excellent blend of psychological horror with a nice twist, but again it will linger.
If you want to borrow some movies, Fandral, let me know. I'd be happy to lend you and Loki some.