AllMovie

Decades after the doctors conducting a sleep study dismissed their subjects' mysterious deaths as "Sudden Unexplained Nocturnal Death Syndrome" and covered-up evidence indicating malevolent shadow beings were involved, a late night radio host (Dallas Roberts) teams with a CDC investigator (Alison Eastwood) team up to research a rash of shadow people sightings resulting in gruesome nocturnal fatalities. Anne Dudek and Mariah Bonner co-star.