In April 1986, nine-year-old Anthonette Cayedito was at home in Gallup, New Mexico, while her mother was asleep. During the early hours of the morning, someone knocked on the front door. Believing it might be a family member, Anthonette answered.

She was never seen again.

Over the years, mysterious phone calls, possible sightings, and conflicting witness accounts have kept hope alive while also deepening the mystery. Was Anthonette abducted by someone she knew, or was she the victim of a stranger who seized a tragic opportunity?

Nearly four decades later, her disappearance remains one of America's most heartbreaking unsolved missing child cases.