Having come of age on the mob-controlled streets of 1960s South Philly, Detective Pete Coletti learned early to walk the fine line between cops and criminals--a skill that served him well during his eighteen years in homicide. Now near the end of his illustrious career, Coletti seems to be on the top of his world. But he is harboring a terrible secret. His most famous arrest was based on a lie, and soon the priest he imprisoned for a decade-old murder will be put to death. It all comes to light when the real killer begins leaving his calling card once again, turning Philadelphia upside down. Coletti must catch him to stop the execution of an innocent man. As the chase winds through historic art galleries and gritty streets, the game intensifies, cultures collide, and Philly's best detective is forced to face a past that could destroy him.