Grace Narayan, a sharp and competent police sergeant known for her adherence to rules, was thriving in her role in the inner city until she was unexpectedly reassigned to a ‘punishment posting’ on the outdated and remote island of St. Jory. There, she encounters the long-neglected and unresolved case of a missing teenager named Cai. To solve the mystery, Grace must navigate through limited evidence, deal with the island’s eccentric inhabitants, and unravel its peculiar cult history.