Miss Pringle and Mrs Mannering met at an evening witch course. Surprisingly, these very different ladies soon realized that they wanted the same thing - to take care of ghosts. And so the agency “Phantom to Every Home” appeared. And everything was just wonderful, until one fine day the young messenger Ted accidentally mixed up the envelopes: the terrible and evil Crixes, who hated children, came to live with modest nuns, and the kind Wilkinson family - the ancient castle of Helton Hall, the owner of which recently and quite unexpectedly became the orphan Oliver Smith. Will Miss Pringle and Mrs. Mannering be able to sort out all this confusion?