In 1905, a man travels to a remote island in search of his missing sister who has been kidnapped by a mysterious religious cult.
In a small and conservative Scottish village, a woman's paralytic husband convinces her to have extramarital intercourse so she can tell him about it and give him a reason for living.
The peacefulness of the Midsomer community is shattered by violent crimes, suspects are placed under suspicion, and it is up to a veteran DCI and his young sergeant to calmly and diligently eliminate the innocent and ruthlessly pursue the guilty.
