Coming soon from Screen Media...

"During a vacation in the woods, a man tries to find his family who mysteriously disappear, while being hunted by a sadistic killer. His only clues are several alarm clocks which seem to tell him about a deadline to something he doesn't know. Full of gripping terror and featuring a shocking twist, Ritual is a thrill ride not to be watched alone."

I think it's been retitled from its original title of Modus Anomali.