Blutrausch [Bloodlust]

People are disappearing in your neighborhood. Are you a victim of bloody violent crimes? Is there a serial killer going around? You feel very comfortable in your apartment when you have just moved in, but your neighbor is behaving strangely. Strange noises, scrutinizing looks, you don't quite feel comfortable with him. To find out what's going on, you secretly enter Michael von Grafenstein's apartment with bated breath. Can you find evidence that something is not right there? What horrors may await you? And most importantly, will you get out alive?