The story unfolds along a windswept seaside port in Argentina, a tight-knit pearl-fishing community that swirls with salt air, risk, and small triumphs. Though the tale is deeply rooted in maritime life, the film itself was shot in Baku, Azerbaijan SSR, giving the setting a dreamlike, sun-bleached quality that lingers long after the credits. At the center of it all is Ichthyander, Vladlen Davydov, a remarkable young figure whose extraordinary lineage is hidden beneath everyday clothes and quiet courage. He is the adopted son of the brilliant scientist Professor Salvator, a man who once saved the boy’s life by grafting him with shark-like gills, a gift that lets him breathe underwater and move through the sea with a swimmer’s grace — a secret that must remain buried from a wary world.
On a fateful day at sea, Ichthyander meets Guttiere Baltazar, Anastasiya Vertinskaya, a pearl fisher’s daughter whose beauty and resilience draw him in. Guttiere’s world is rooted in the ocean’s treasures and the fishermen’s hard-won rhythms, and her presence awakens a longing in Ichthyander that he struggles to name. He soon travels from the water’s edge into the city, seeking the woman who has stirred something ardent and fragile inside him, only to discover that Guttiere’s heart believes her savior is not a mysterious protector but a greedy businessman, Pedro Zurita. Zurita’s charm masks a calculating hunger for power and wealth, and his interest in Guttiere is less about affection than control and opportunity.
As Zurita learns of Ichthyander’s secret gift, his opportunistic plans take shape: he wants to use Ichthyander’s underwater abilities to harvest pearls on a scale that could bend an entire community to his will. Conflict erupts as the two men collide — one bound to the sea by blood and science, the other bound to the surface by ambition. The tension crescendos when Ichthyander is captured and caged underwater, a cruel reversal that robs him of the freedom to breathe on land and saps his stamina with each passing day. The struggle is not merely physical but existential, as the ocean itself becomes a prison and a sanctuary.
Ichthyander fights to break free, and with the help of loyal allies, he is ultimately liberated. Yet the victory comes at a grave cost: his strength wanes, and the boy who could once walk on land must now live permanently in the sea, a life shaped by salt, current, and a memory of what might have been. Guttiere’s fate threads through this upheaval in parallel, and her path toward happiness grows perilously intertwined with the risks of a society built on exploitation and unequal power.
The middle act of the story culminates in a brutal moment of personal consequence: Guttiere’s father, Old Baltazar, Anatoliy Smiranin, destroys Zurita, finally relieving Guttiere from an unhappy marriage. The act is both a release and a tragedy, because while Zurita’s death ends one form of misery, it cannot restore what has been irrevocably altered. The lovers—Ichthyander and Guttiere—are separated forever, their bond tempered by sacrifice and the ocean’s unyielding distance.
Beyond its romantic core, the film stands as a meditation on greed and the exploitation of natural resources. The narrative uses the perilous pearl trade and a man’s ruthless desire to spotlight broader social critique, a hallmark of Socialist Realism, where personal pain intersects with moral lessons about collective responsibility. The sea, the port, and the village’s daily rituals all reinforce a world where nature’s bounty should be protected, not weaponized for personal gain. In this light, the film is not merely a tragedy of lost love but a cautionary tale about the costs of unchecked material ambition.
In the end, the story remains faithful to its emotional heart even as it broadens its scope to ask larger questions about humanity’s relationship with the natural world. Ichthyander’s underwater life and Guttiere’s enduring longing echo through the cinema as a poignant reminder: some connections are so profound that they survive the most sweeping tides of greed, even as they cannot be fully reconciled in this world.