Model police officer Scotty McVeigh was one of New York's finest, until someone pumped a pair of bullets into his body on St. Patrick's Day. Former nun Christine Bennett and her police-detective boyfriend find this motiveless murder puzzling. Could there be a connection between McVeigh's murder and the other unsolved murders of off-duty cops? Praying for a break, Christine pursues a killer along a strange path: a pilgrimage that takes her from a suburban covenant to a Brooklyn fruit market and deep into the sacrosanct world of the NYPD.