Hannah Grace (Kirby Johnson) is having a time of it in Diederik Van Rooijen’s The Possession of Hannah Grace (2018). First she’s alive but possessed by a demon. Then she’s dead and still possessed, or dead-ish, anyway, most of the time. Yes, her corpse is laid out on a slab. But every now and then it rouses itself and crawls spider-like through the halls of the morgue.