Nine-year-old Mathias is constantly haunted by dreams of the Silent Lady—she does him no harm, yet she appears every night, watching him with a sorrowful gaze and remaining utterly mute; now, he is terrified to fall asleep. Exhausted and desperate, his parents turn to Pietro Gerber—a Florentine hypnotist specializing in trauma therapy for children. Gerber agrees to help, only to find himself...