Jesuit priest, Dr. Joachim Ferrer, is harboring a secret from his violent past. He soon finds himself caught in a web of intrigue when a young Carmelite nun, Sarah, is rushed to his hospital. Suffering from inexplicable pain and delusions, Joachim recognizes in Sarah the familiar symptoms of repression and denial. She shares a terrifying secret with her twin sister, Gaelle. Caught between his obsession to uncover the truth and his growing attraction...

Pierre Niemans (Jean Reno) investigates a series of ritual murders that are somehow tied to a secretive order of monks, hidden treasure, and the Apocalypse.