Paul and Jennifer Hemdale have just moved into their dream house. But their happy marriage is about to be put to the test as they slowly discover the secret behind the black room in the cellar. Something else is already living in their new home and it is growing stronger every day.

Stu Undercoffler is a corrupt CEO whose drive for power has led him to make some highly unethical choices. Once Stu's self-serving decisions have begun to spread darkness through the world, there's no stopping it. After losing his wife, Stu begins to have a crisis of conscience but starts to believe he is being stalked and has been hallucinating. Is he losing his mind or have his former victims come back to wreck havoc on him?