Sidney Chambers, the Vicar of Grantchester, is a thirty-two-year-old bachelor. Tall, with dark brown hair, eyes the colour of hazelnuts and a reassuringly gentle manner, Sidney is an unconventional clergyman and can go where the police cannot. Together with his roguish friend, Inspector Geordie Keating, Sidney inquires into the suspect suicide of a Cambridge solicitor, a scandalous jewellery theft at a New Year's Eve dinner party, the unexplained death of a well-known jazz promoter and a shocking art forgery, the disclosure of which puts a close friend in danger. Sidney discovers that being a detective, like being a clergyman, means that you are never off duty.