In series four, which aired on ITV earlier this year, young, new parish priest Will Davenport (Tom Brittney) became DI Geordie Keating’s (Robson Green) new crime-fighting partner. Series five picks up a year later, in Cambridge in 1957, the year Prime Minister Harold Macmillan told the British people that they had ‘never had it so good’. For many of the residents of Grantchester, it really will feel like they’re in a delightful new Eden, but for all the talk of paradise on earth and faith-in-action, Geordie Keating knows that trouble is never far away.