In 1929, a small, strange building was constructed on the summit of Monte Generoso, overlooking the rocky cliff face. Located at an altitude of 1,700 meters and difficult to access, it resembled an eagle's nest dominating the region, similar to certain war bunkers or hermitages clinging to the rocks. Who was the mysterious woman of noble origins for whom the building was constructed? A spy, as rumored, or an extravagant scholar in search of contemplative peace? Almost a century later, the enigma remains. Through a lengthy investigation, the director delves into intricate events and complex historical periods in search of answers.