The crime scene at St Margueritexs cathedral in New Orleans is shocking even to seasoned detectives like Rick Bentz and Reuben Montoya A novice nun named Sister Camille has been found dressed in a yellowed bridal gown and viciously garroted her body covered with an altar clothValerie Houston is devastated by her sisterxs death For weeks shexd begged Camille to leave St Margueritexs where she seemed determined to live as some kind of martyr But Camille had a knack for making bad choicesxshe joined the convent in part because shexd fallen for Valxs soon-to-be ex-husband SladeConvinced the police arenxt doing enough Val begins to investigate Slade on a mission to repair their marriage is determined to help her But the deeper Valxs inquiries go the more twisted the case becomes St Margueritexs is far from the tranquil retreat many believe and everyone from handsome Father Frank OxToole to the mysterious Mother Superior has their own agenda Despite their closeness even Camille had a hidden life Val never suspected But someone knew about Camillexs pastxand Valxs too Now she has no choice but to catch a devious depraved killer intent on purging St Margueritexs of all its sinsxbefore she becomes the next victimx.