"Grantchester" is a novel by James Runcie that follows the life of a vicar named Sidney Chambers in the 1950s English village of Grantchester. The story combines elements of mystery and drama as Chambers becomes an amateur detective, solving various crimes while navigating his personal struggles and relationships. Set against the backdrop of post-war England, the novel explores themes of faith, love, and morality. Chambers often collaborates with his friend, Inspector Geordie Keating, to uncover the truth behind the mysteries that arise in their quaint community, making for an engaging and thought-provoking read.