Grantchester is a British TV series starring Robson Green, Tessa Peake-Jones, and Al Weaver.

A Cambridgeshire clergyman finds himself investigating a series of mysterious wrongdoings in his small village of Grantchester. In Series 3, Episode 3, a murder suspect is identified because he has 'form', ie he was in Borstal as a teenager because of stealing. However, as the show progresses it is clear this was man was not the culprit.

In Series 5, Episode 3, the murder victim is a young man who was in care as a child. He is a movie enthusiast, pretending he's American and a former scriptwriter with connections in Hollywood. He is killed by a young woman who finds out he can't help her become famous.

In Series 6, Episode 2, the head of a local adoption agency is killed and the ethics of adoption is questioned.

Series 8 opens with the murder of a young man who was orphaned as a child and taken in by another family. This is a “cuckoo in the next” story.