Mike and Costa were once like brothers. Now Mike is a policeman and tries to convict his former friend. But on this day, a chemical accident in a factory not far away ensures that the two have to overcome quite different problems. The accident victims mutate into ravenous zombies and the two are already facing a new enemy. A leg-breaking fight for survival breaks out.

Aliens have landed on Earth! They are in search of fresh blood! The aliens have chosen female menstruation as their main food source. No "Bloody Mary" is safe from the intergalactic vampires! But a fearless troop under the leadership of the village idiot Jockel Rangebumm faces the monsters! True to the motto: "You want blood? Then come and get it!" the astro-zombies are properly heated up!

Costa wakes up tied up in the basement. Apparently, someone still has old scores to settle with him...