In Philadelphia, 2026, humanity wakes to the thoughts of animals—dogs, cats, crows, all knowing your sins, fears, and betrayals. At first, it’s a whisper in your mind; then they speak aloud, their voices not theirs but something ancient, the Tongue of God, exposing every lie. Veterinarian Lydia Marks hears her cat Oscar name her darkest secret—a lie that ruined her brother. As animals turn judge, revealing humanity’s flaws, Lydia traces the source to an abandoned zoo’s pulsing pit, where a language older than man demands truth or silence.