Michel must go to dangerous lengths to save his wife and newborn child from the intrigues of the king’s mistress in this historical drama.

Winter in Vienna. Children disappear. For now without a trace, then their bodies are found. A gift for the tabloid press. For the police a series of defeats. Politically a problem. And at the same time the long-awaited opportunity for the ambitious interior minister. The organized crime is in trouble. The child murderer must be found so that all other dirty jobs can go on.

When lovelorn Michael arrives in Berlin to return a set of keys to his ex-girlfriend, Gabi, as an excuse to see her again, he finds her apartment empty save for a couple of plumbers making repairs to the central heating. Just as Michael learns from the plumber’s apprentice, Harper, that Gabi has popped out for a while but will return soon, the apprentice is attacked by his boss who has unexpectedly and inexplicably transformed into a raging madman. Together, Michael and Harper manage to bundle the crazed plumber out of the apartment and barricade themselves safely inside. Within minutes, they find themselves trapped in apartment block under siege from a horde of similarly insane people, apparently hungry for human flesh.