A generation ago, participants in an experimental sleep study complained of seeing shadowy creatures...and died in their sleep soon after. Now, an outbreak of a similar phenomenon is erupting, and a late-night radio talker (Dallas Roberts) and a skeptical CDC investigator (Alison Eastwood) won't rest until the unbelievable truth is uncovered. Somnambular shocker co-stars Anne Dudek, Mariah Bonner, Mattie Liptak. 88 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital 5.1; Subtitles: English (SDH), Spanish.