Following a violent, traumatic home invasion that shattered her family's sense of domestic safety, a young mother installs an expensive, high-tech security system and retreats into her house. Her peace is short-lived when a charismatic, mysterious intruder begins manipulating his way back into her social circle, displaying a bizarre familiarity with her deepest fears. Paranoia consumes her as she realizes the security cameras are being monitored by someone else, turning her safe haven into an transparent glass cage. The prose brilliantly analyzes the psychological aftermath of trauma, tracking a mother's desperate, high-stakes fight to protect her children from a predator who already knows all her secrets.