I was weaned on horror movies and love them inordinately, but the genre has gone to the dogs — and to the muscle-bound werewolves, hormonal vampires, flesh-eating zombies, machete-wielding psychos, etc. It's also depressing how most modern horror pictures have unhappy nihilist endings in which everyone dies and the demons pop back up, unvanquished — partly because studios think happy endings are too soft, but mostly because they need their monsters for so-called franchises.
But Mama is an entertaining step in the right, which is to say backward, direction.