In 1974, a woman’s mutilated body was discovered buried in the dunes of Cape Cod. Her hands were missing, her face was unrecognizable, and her identity was erased. For half a century, she was known only as the Lady of the Dunes. Then, in 2022, a single strand of degraded DNA — smaller than a grain of sand — cracked the case wide open. Who was she? How did her killer vanish without a trace? And how did one microscopic clue expose a murderer who’d escaped justice for half a century? Stay with us — because the truth behind America’s most haunting seaside mystery is darker, stranger, and far more shocking than anyone imagined.