A voice from a distant future tells of a vanished city that was once among the most famous in the world, a city that rose from the water. Amidst legends, rituals and hearsay, the narrator describes a daily life made up of boats, at times mythical, dramatic and poetic, bringing out its profound relationship with the lagoon that surrounds it, with its waters, its muddy islands and the animals that populate it. Did that city ever exist? Is it still inhabited, or has it turned into a tourist park? Did it survive the floods, or was it submerged? Did it survive the plagues? Have its inhabitants managed to find a new way of living together? The result is an indefinite tale of a unique and fragile city that, in its own way, speaks of every city on earth.