Nightmare.

A mind-body disconnect - that's what causes sleep paralysis, a terrifyingly real experience in which someone awakes momentarily made of stone. Molly Duggan is determined to discover a treatment, because in rare cases, it can kill: Her mother was one of its victims. But what science can't explain is why Molly suddenly starts experiencing episodes herself and during them, feels a sinister presence surrounding her. So she turns to legends, and that's when her real nightmare begins. Haylie Duff stars in this pulse-pounding chiller.