Virus Undead (also known as Beast Within) is a 2008 German horror film directed by Wolf Wolff and Ohmuthi, written by Wolf Jahnke, and starring Philipp Danne, Birthe Wolter, Anna Breuer, Nikolas Jürgens, and Marvin Gronen. The screenplay concerns a group of medical students and locals in a small town who suffer an outbreak of a mutated H5N1-like virus that causes people to turn into zombies.