The center of the story revolves around a young couple, Humphrey and Martha, who live together in the idyllic countryside of Britain. In search of a more peaceful life away from the stress of the city, Humphrey decides to take a job as an inspector in Martha's hometown. However, they soon discover that rural life is not as calm as it may have seemed at first glance. The surprisingly high level of crime in the town forces Humphrey to get involved in a new investigation every week.