Each year, the Midsomer village of Angel's Rise hosts an annual Psychic Fayre in the vast and gothic Eddon Hall. Founded by the Saint-Stephens family in memory of their late daughter, the event attracts all manner of mediums, psychics, and followers of the occult. When a body is found surrounded by ritual symbols on the eve of the gathering, Barnaby must step into a world of self-proclaimed witches to find the killer.