Another homeless man is found dead, clean-shaven and killed in the same manner as the previous victims. Geordie and Will realise that they may have sent the wrong person to prison, and the real killer may still be at large.

A murder at a local old folks' home sees Will and Geordie given the run around when they try to track down two of its elderly residents. Clem Preston, a mischievous raconteur with a tall tale for every occasion, and fun-loving Ida Merryman, have gone missing and are suspected of involvement in the crime. Are they guilty or are the duo leading the police on a wild goose chase - and if so - why?

A member of Will's own congregation is found murdered just before a church fundraising event. It quickly becomes clear that the victim, Neil Hughs, was not quite the upstanding member of the community Will believed him to have been. And secrets emerge that make Will question how well he really knows any of his parishioners.

A vagrant is found dead in the doorway of Leonard's café. Geordie can't shake the feeling that this murder could be connected to two previous unsolved cases – is there a killer out there targeting the homeless?

Lester Carmichael, part of the husband-and-wife team who own the Carmichael's cleaning goods brand, is found dead, with a rather unusual neck wound.

Will and Geordie's investigation leads them to look into Lester's private life, which, they discover, is much less spotless than the carefully curated image he and his wife Melanie like to present to the public. He was a regular visitor to a local suburban brothel.

Will and Geordie must consider whether Lester's demise could have been motivated by his wife's desire to protect the reputation of their business, or if the murder is connected to the brothel itself.

Meanwhile, Mrs C's recent erratic behaviour causes Jack to question whether she could be having an affair, and Will is increasingly drawn to the passionate and alluring
Maya.

Will she leave Elliot for him? Do they have a future together? Could Maya be ‘the one'?

The summer of 1959 finds the wedding season in full swing in the Cambridgeshire village of Grantchester. Among the Reverend Will Davenport's many brides-to-be is Adele Fitzgerald, who lives on the once-splendid, but now declining Fitzgerald Estate with her green-fingered spinster sister Maude. The body of a dead man is found in the grounds and is quickly identified as the sisters' errant brother Lord Edmund Fitzgerald, who has been living an itinerant life travelling the world since the war. Will and DI Geordie Keating find themselves at odds with Geordie's new boss DCI Elliot Wallace and DC Larry Peters in viewing the death as a murder. As Will and Geordie investigate the Fitzgerald family history, they find themselves looking into Edmund's own romantic past.