I'm reminded of the godawful "House of the Exorcism", with Telly Savalas. And 1974's similar "The Tempter" was terrible, too.
You are woman of taste and distinction. Might I suggest then the Last Horror Movie or Behind the Mask: The Rise of Leslie Vernon (2006)?
I've likely seen more horror then even you - it takes a lot for me to ever remember a movie anymore. These two are unique, usually horror is regurgitated crap like Jennifer's Connolly's Ring rip-off or the fifty versions of Aliens and Jason they've done.
Also saw Devil by...yes...M Night...and it is...not bad really. No, really!