Overkill

A mother and her son are struggling through the frozen countryside. The birds no longer rule the sky and whatever is to be found on the ground is as dead as winter itself. A spark of hope lights up when they find an abandoned car. But after the mother discovers two of the previous owner dead, she realize that something is missing. Or rather someone.

The film centers on Dr. Marcus, a renowned psychiatrist who has selected 6 severe mentally ill and dangerous patients from the Spring Valley Mental Hospital to interview as part of research for his new book. As Dr. Marcus interviews each patient, one by one the horrors they have committed begin to unfold. However, Dr. Marcus soon learns that there is one patient who ties them all together - Patient Seven.