The Legend of Hell House

In sits there, shrouded in mist and mystery, a nesting place for living evil and terror from the dead. It's Hell House. Roddy McDowall heads the cast of this chiller about four psychic investigators and the dark, brooding mansion they themselves call "the Mt. Everest of haunted houses." It's already destroyed one team of researchers. Now this brave quartet ventures in for another try at unraveling its secret. But before they succeed, they must suffer through madness, murder and everything else the spirits that dwell here have in store for them. Yet learning the truth just might drive them all insane. (official distributor synopsis)