Old Mother Riley inherits a Scottish property, believing it, at first, to be a pub, and makes the journey up north with her daughter, Kitty. They are surprised to find themselves in possession of a haunted castle, though it turns out the ghouls and ghosties are not what they seem. They are in fact an ingenious front for an espionage ring anxious to get their hands on an inventor's plans, and trying to scare intruders away. After vigorous attempts to scare Mother Riley out of her wits, the Irish washerwoman ends up turning the tables on the spies, and terrifying them in return.[2][3]