In 1953 at the hamlet of Grantchester, Sidney Chambers—a charismatic, charming clergyman—turns investigative vicar when one of his parishioners dies in suspicious circumstances.

Clinical psychologist Dr Tony Hill’s uncanny ability to see into the minds of murderers means he finds it difficult to distance himself from disturbing cases.

The Queen’s youngest son is off to university, mainly because “I’m hopeless at anything else”. Barry, his new bodyguard, has no time for the royal family and left school at…