Saturday the 14th Strikes Back

After moving into a decrepit, inherited mansion with his family -- a collection of oddballs who eat nothing but junk food yet cling to a Leave It to Beaver sense of normalcy -- Eddie is the only one to notice the mysterious mists that spill up from the basement and engender odd behavior in everyone but himself and lovable old Gramps. The entire family, from Eddie's dad to his freeloading Aunt Alice, soon begins conducting late-night chocolate-fudge sculpture classes in the kitchen. Chairs begin eating people, Aunt Alice spouts werewolf-style facial hair, and monsters begin issuing forth from a crack in the basement floor. Soon, a leggy blond vampire named Charlene has taken up residence in the Eddie's room; she tells the boy he's set to inherit the mantle of darkness from a fiend known as The Evil One at the stroke of midnight on Saturday the 14th. As signs and portents proliferate, Eddie must decide whether to reject temptation or bask in his newfound powers. Help arrives unexpectedly in the form of Leonard Cavendish, Gramps' deceased best friend.