In September 1981, in the idyllic village of Eiching, Bavaria, Germany, a 10-year-old girl named Ursula Herrmann was riding her bike home after having dinner at her aunt and uncle’s house. Ursula never arrived home and seemed to vanish into thin air. Her parents received two ransom notes and phone calls from the kidnappers but after they agreed to pay the ransom and were working out the details of the ransom drop, the communications suddenly stopped. Searchers, who were combing through the woods after Ursula had been missing for 19 days, found a strange wooden box buried in the woods. When they opened it, the mysterious disappearance of little Ursula only became more puzzling.