Lynn and Lucy are lifelong best friends, their relationship as intense as any romance. Neither has ventured far from where they grew up. Lynn, who married her first boyfriend and whose daughter is fast growing up, is delighted when the charismatic, volatile Lucy has her first baby boy. Lucy, however, does not react to being a mother as Lynn expects. Soon, they find their friendship is tested in extreme circumstances.

Drama series set in 1953, against the backdrop of the real hamlet of Grantchester. The drama focuses upon the life of Sidney Chambers, a charismatic, charming clergyman who turns investigative vicar when one of his parishioners dies in suspicious circumstances.