Luke Fitzwilliam does not believe Miss Pinkerton's wild allegation that a multiple murderer is at work in the quiet English village of Wychwood and that her local doctor is next in line. But within hours, Miss Pinkerton has been killed in a hit-and-run car accident. Mere coincidence? Luke is inclined to think so, until he reads in the Times of the unexpected demise of Wychwood's Dr. Humbleby.