Francis in the Haunted House is a 1956 American comedy horror film from Universal-International, produced by Robert Arthur, directed by Charles Lamont, that stars Mickey Rooney and Virginia Welles.

With Francis' help and guidance, Prescott uncovers a mystery involving murder, an inheritance, and a spooky old mansion on the edge of town.

He telephones Prescott, who is attending a party at City Hall and seems to be making progress courting heiress Lorna Mac Leod; owner of the castle.

Back to the interrogation room---where Prescott is subjected to hypnosis,lie detector tests,and truth serum.And still he insists there is such a thing as a Talking Mule.

Prescott insists he must sneak back to the castle to protect Lorna----and blunders into an underground dungeon that contains two "missing lawyers" and the GENUINE heiress.

This seventh and final entry in the Francis the Talking Mule series was made without most of the key creative personnel from the earlier films.

Leonard Maltin, in his Movie Guide, quotes Donald O'Connor on quitting the series: "When you've made six pictures and the mule still gets more fan mail than you do...." Director Lubin and Chill Wills were also absent, replaced respectively by Charles Lamont and voice actor Paul Frees, who did a close approximation of Wills' voice as Francis.

With the original elements missing, the film, a standard tale of fake ghosts and gangsters, was poorly received; it was widely reviewed as the weakest entry in the series.