Fifty thousand believers and photo-hungry tourists jam into Notre Dame Cathedral on August 15 to celebrate the Feast of the Assumption. The next morning, a stunningly beautiful young woman clothed all in white kneels at prayer in a cathedral side chapel. But when an American tourist accidentally bumps against her, her body collapses. She has been murdered: the autopsy reveals disturbing details. Police investigators and priests search for the killer as they discover other truths about guilt and redemption in this soaring Paris refuge for the lost, the damned, and the saved.