Doc and Rose accidentally materialise in Cardiff and go Ghostbusting with Charles Dickens.
Doc promises to take Rose on a beautiful trip to Italy, but accidentally wibbly-wobblys them to Cardiff, 1869, Christmas.
At a nearby funeral parlour, Mr Sneed and his psychic servant, Gwyneth (played by Eve Myles of Torchwood fame), are less surprised than you’d imagine to find that a recently deceased old lady in their care has risen, Walking-Dead-style, and killed her unsuspecting grandson who up until then had been grieving by her side.
Meanwhile, Charles Dickens himself (admirably portrayed by Simon Callow) is sitting backstage of a theatre where he is just about to regale an audience with his tales, thinking that there just isn’t enough excitement or change in his life.
Long story short, Mrs Zombie Lady heads off to see Dickens perform live on stage; glowing blue vapour flies out of her mouth, scaring Charlie and his audience; The Doctor and Rose are intrigued and decide to investigate; and suddenly Rose is being chloroformed by Sneed while Doc and Dickens must Ghostbust their way to her rescue.