Dr. Eleanor Vance has built her career helping people conquer their deepest fears—until someone starts proving her wrong in the most brutal way possible. A methodical killer is hunting down successfully treated phobia patients, forcing them to die by the very terrors they believed they'd overcome. Each murder sends the same chilling fear never truly dies, it only hides. When the killer begins targeting Dr. Vance's own patients and reveals he's been studying her personal battle with claustrophobia, she realizes she's not just consulting on the case—she's the ultimate test subject. Trapped in a deadly game with a man who views murder as scientific research, Dr. Vance must race to stop him before he proves his terrifying hypothesis using her own deepest fear against her. A psychological thriller that explores the thin line between healing and deception, questioning whether we can ever truly escape our deepest terrors.