Overview

When lovelorn Michael gets here in Berlin to return a collection of keys to his ex-girlfriend, Gabi, as a reason to see her again, he locates her apartment or condo vacant save for a number of plumbing professionals making fixings to the central home heating. Equally as Michael picks up from the plumber's apprentice, Harper, that Gabi has bulged for some time but will return quickly, the pupil is attacked by his manager who has suddenly and inexplicably changed right into a raging madman. With each other, Michael and Harper manage to bundle the wild plumbing professional out of the home as well as defend themselves safely within. Within mins, they find themselves trapped in home block under siege from a horde of similarly crazy individuals, apparently starving for human flesh.