Ava, a believer in data-driven parenting, puts truth-tracking shock bracelets on twin girls. Elder Luna is repeatedly flagged red as a liar, while Maya’s stays permanently green. When Maya frames Luna, Ava trusts the device and locks 5-year-old Luna in a fridge, where she freezes to death. Police find the bracelets are cheap toys; Maya’s was factory-locked green. Shattered by the tragedy, Luna’s hate-filled spirit departs with her dog’s soul.