Built on the left bank of the Tiber, where legend has it that Aeneas landed, tradition has it that the fourth king of Rome founded the city of Ostia to defend the mouth of the river. The documentary focuses on the main archaeological finds, recalling the importance of the city during the Roman Empire. Through multiple panoramic shots and tracking shots, complemented by unconventional musical accompaniment, Di Gianni explores the interior of a domus, the Mithraeum, and the necropolis, highlighting the absolute immobility of the ruins, which at times evokes a certain uneasiness.