You think the glowing red collar is Lily’s real enemy? Think again. In this family, a green light earns love, while a red one brings punishment. Lily insists she is telling the truth, but her perfect sister smiles, her father stays silent, and her mother trusts the device without question. Then Lily’s bedroom door is locked—and something on the other side begins to change. When the truth finally comes out, it may already be far too late.
