Berlin student Robert seems to have a fortune falling into his lap when his long-lost uncle Alois passes away, bequeathing Robert a luxurious villa in the German capital. The only catch: Robert has to spend the night before Halloween alone in his new mansion - and not open the door for anyone until sunrise. The allure of quick riches soon turns into a deep-dive into Robert's hidden family history. Discovering he is the last descendant of a blessed bloodline spanning ten generations, he has to join a crackpot team of witch hunters to save not only himself, but all of Europe from destruction at the hands of his ancestors' arch nemesis: the Grand Witch of the East.