A young woman, the owner of a film studio who made horror films, was killed. After death, someone cut out her eyes and put them in her hand. The cause of death is unclear, no visible injuries, and an autopsy reveals nothing. At the same time, a second murder occurs - a young man is found on the pier with three arrows in his chest. The same story: the arrows were inserted posthumously, the cause of death is unclear... The task facing detective Jane Rizzoli and pathologist Maura Isles seems insoluble. But at the autopsy, Maura suddenly has a hunch, and to make sure that her theory is correct, she decides to meet with a Catholic priest with whom they once had a close relationship. It turns out that both victims’ birthday coincides with the day of remembrance of one of the Christian martyrs according to the church calendar...