Hedgewitch Katie Lightwood is interested in her adopted hometown's rich supernatural history, and takes a ghost tour for the first time. But when the psychic tour guide tells Katie that she's being followed by the ghost of a recently murdered woman, and Katie realises she met the woman earlier that day, she knows she must bring the killer to justice. But there's more: Katie's new husband is missing the guardian spirit who always watched over him, and his life could be at risk if they can't find him. Katie will need all her magical skills, because this baker kneads to find a killer.