This movie doesn't open until sometime next year, but someone must have wanted to take advantage of the Halloween spirit by releasing the trailer for it now. The Haunting in Connecticut is a based-on-real-events movie in which a family moves to a spooky old home, only to be haunted by the terrible things that happened there years ago. Turns out, their new home used to be a mortuary.
It does look frightening, though most of this comes from jump-scares and glimpses of things that look like they might be really gross, but you don't know for sure so your mind fills in the blanks with gross things anyway. It's too bad this isn't coming out for a while; I'd be all for making this a Halloween-time must-see.
To check out the trailer for yourself,