A priest who had just returned from 20 years of working overseas is found beheaded in his church. Father Malachy confesses to Jack that now he himself fears for his life and reveals a tragic story about the murdered priest. The latter had committed a terrible deed before being moved overseas - Father Malachy suspects an act of revenge. After the discovery of another dead body the Guards think they found the priest-murderer. But for Jack and Cody too many questions remain unanswered to close the case. During their investigations they find more and more well-protected secrets from the history of the church. Another confession leads them to a different trace...