What is a short summary of Dahl's, The Landlady, from the short-story collection, Kiss Kiss?

In "The Landlady," 17-year-old Billy Weaver travels from London to Bath. After arriving in town, he notices a tantalizing bed and breakfast and decides to stay. He soon discovers that the landlady has killed and stuffed her last two guests, the same way she has stuffed her dog and parrot.