“The Deeper You Dig” (** out of four) was an overly cerebral horror thriller about a roadside accident and how its tragic aftermath affects a mother (Toby Poser), her daughter (Zelda Adams), and a stranger (John Adams) and blurs the line for all of them between the living and the dead and sanity and unsanity. Undeniably creepy at times and augmented by John Adams’ deranged music score and solid performances but film eventually wears you out with its unpleasantness and macabre touches. Both Adams and Poser co-directed and obviously watched Sam Raimi’s “Evil Dead” series and “The Shining” a few times before.