An eccentric professor takes four of his students to the mansion of the âMad Hatterâ, an urban legend driven insane by mercury poisoning and grief. He says that thereâs nothing to worry about now: the strange, shambling âcaretakersâ that haunt the home are merely servants that have fallen to inbreeding, and the Hatter himself has been dead for years. But as the students start disappearing one by one, those that remain start to question if the professorâs experiment is truly scientific...and if the Hatter didnât just succumb to his madness, but decided to spread it...