Mom and Dad ★★½

I dunno. I expected more from the premise, given the pedigree of the writer/director (Brian Taylor, one half of the duo who made Crank) and the presence of Nicolas Cage, being Nicolas Cage. But after a promising, unsettling start (and there are quite a few moments that will linger), it all slows to a crawl when the titular parents and their kids, running for their lives, get bottled up in the family home. Taylor has no idea what to do with them as he runs out the clock to a final twist that doesn’t set up much of a conclusion. Paucity of budget, or paucity of ideas?