Faust's Key

Upset by watching his mother die, Matthew goes shopping and finds a key in a pawn shop with the word "Faust" inscribed in burnished brass. He knows Faust Manor was abandoned decades ago, and hopes the key might open something interesting.

Instead, he finds something Faust created that can save his mother's life, and the instructions he needs to get the machine working. All he needs is a few dead people...