剧情简介 : A blackout leaves the distinguished halls of the Lwanderska Hospital in complete darkness. Doctor Sverker Lwander hears the alarm when one of the ventilators go off, and rushes to the intensive care unit only to find the nurse in charge dead in the stairwell and the other disappeared without a trace. When DI Irene Huss arrives, the only witness claims to have seen Nurse Tekla...