A sister’s worst nightmare. A homicide detective’s destiny. Everybody loves Claire’s little sister, Tina. But only Claire sees the twisted psychopath hiding behind her sister’s angelic face. When Tina is brutally murdered on her fourteenth birthday, the day Claire failed to walk her home from school, Claire never forgives herself. And neither does their mother. Twelve years later, Claire, now a police detective, returns to Newburgh to solve the mystery of her sister’s death. When more girls turn up dead exactly like Tina, Claire suspects that her sister’s murderer is still on the prowl. But this is no ordinary serial killer. The murders stump the team of FBI agents and a forensic psychiatrist assisting the investigation, including Special Agent Robert Cline—a former FBI hostage negotiator and Claire’s old flame. As the evidence piles up, Claire’s troubled childhood comes back to haunt her. She becomes the lead suspect in the murder investigation, and the system turns against her. Unable to trust anyone—not even herself—Claire must break every rule in the book to save the next girl. With time running out in this nerve-shredding psychological thriller and harrowing family drama, a shocking discovery changes everything. Is Claire’s sister truly dead—or is she playing one final lethal prank?