When Grantchester vicar Sidney Chambers is accused of a terrible crime, unmasking the real culprit sends shockwaves through the community.

Sidney and Geordie investigate a Cambridge lecturer's fatal fall from the college spires.

A young man confesses to Sidney and Geordie that he attacked and killed his landlord.

Sidney is summoned to perform an exorcism at a stable owner's home.

Will Gary go to the gallows? Will Geordie go to prison? Are Sidney and Geordie’s crime fighting days over? The case of a suspicious death takes a surprising turn.