When the discovery of a mass grave in northern Maine reveals the truth about the disappearance of a religious community, private detective Charlie Parker becomes embroiled in a deadly conflict with a group of religious fanatics. .

Investigating the unlikely murder-suicide case of his cousin, who secretly worked for the CIA, Stone Barrington is surprised to learn that his cousin had named him the executor of his estate just prior to his death.

"Still recovering from his life-threatening wounds, private detective Charlie Parker investigates a case that has its origins in a Nazi concentration camp during the Second World War. Parker has retreated to the small Maine town of Boreas to regain his strength. There he befriends a widow named Ruth Winter and her young daughter, Amanda. But Ruth has her secrets. Old atrocities are about to be unearthed, and old sinners will kill to hide their sins....