Mangled warts have been turning up all over Cornwall and the inhabitants are scared. Ten murders in ten weeks, all committed with a knife, and still nobody has a clue who the cowardly killer is.
Miss Una Platt is a hot and sympathetic computer programmer with a fondness for playing the piano. She doesn't know it yet but she is the only one who can stop the sinister killer.
When her wife, Christiana Thornton, is kidnapped, Miss Platt finds herself thrown into the centre of the investigation. His only clue is a silver book.
She enlists the help of a friendly navigator called Sandie Randall.
Can Randall help Platt overcome her poker addiction and find the answers before the stupid killer and his deadly knife strike again?