Once it becomes apparent that the mansion is, in fact, haunted -- it contains ghosts reminiscent of those in Peter Jackson'sThe Frighteners in both their shimmering appearance and a penchant for groan-inducing one-liners -- the film becomes little more than an excuse for decidedly subpar special effects sequences.
For instance, among many other things the secret passages are from "Clue"; the spooky inside of the house is from "The House on Haunted Hill," "The Haunting," and "The Legend of Hell House"; the rotting corpses are from "Raiders of the Lost Ark" and "Poltergeist"; the "I see dead people" line is from "The Sixth Sense"; the girl in the painting, the mausoleum, the surrounding graveyard, the swamps, and the mysterious key are from Bob Hope's "Ghost Breakers" (remade as Martin and Lewis's "Scared Stiff"); the disembodied head (Jennifer Tilly) in the crystal ball is from "The Wizard of Oz"; the bugs on the door handle are from "Indiana Jones and the Temple of Doom"; the skeletal ghosts of the dead are from "Pirates of the Caribbean"; the vaults are from "Interview With the Vampire"; the look and appearance of the film are courtesy of "The Frighteners"; and so on, you get the idea.