Everyone probably figured that Vincent Price, Christopher Lee and Peter Cushing would have to all co-star in a movie, but who ever would have guessed that Desi Arnaz Jr would also co-star? Far removed from his parents' famous roles, Arnaz plays Kenneth Magee, an American author who goes to an old Welsh estate to write a novel. He is supposed to have no disturbances, but Vincent Price, Peter Cushing and John Carradine arrive to release their brother who has been locked in his room for forty years, and Christopher Lee arrives to claim ownership of the mansion. Naturally, things don't go as everyone expects.
"House of the Long Shadows" doesn't have anything that we wouldn't anticipate in a movie about a dark old mansion, but it's got more twists and turns than a roller coaster. So, I recommend it, and I hope that they don't try to remake it.