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 for Gaelle, Joachim rejects his commitment to faith and follows his instincts to a terrifying and unimaginable conclusion.