The Psychology of Luca: Hidden Identity, the First Friend, and the Courage to Be Seen

The World Above That Must Not Be Approached

When we first meet Luca, he is a basically content young person living the life his undersea community has prepared him for. He herds fish, navigates the routines of his parents and his extraordinary grandmother, and quietly collects human objects that have fallen into the sea, imagining what the world above might be like. His family's warnings map with considerable precision onto the warnings that children whose authentic selves do not match their communities' expectations often receive from well-meaning adults: the world above is dangerous, the people there will hurt you, you must never let them see who you are, your curiosity is natural but must be suppressed. The warnings are delivered with genuine love, but they are also calibrated to protect the comfort of the community more than the actual wellbeing of the child. This dynamic has been studied in research on children of conservative religious communities, of immigrant families with strong cultural maintenance traditions, and of many other contexts in which communal cohesion depends on the suppression of certain individual differences, where the child whose nature diverges from the template faces a painful bind between belonging and integrity.

Alberto and the Permission of the First Friend

Luca's life is transformed by his meeting with Alberto, an older, bolder sea monster who has already been doing what Luca has only been imagining. Alberto walks on two legs when dry, has collected a hoard of human objects, and has invented elaborate stories about what the human world contains, and his very existence proves to Luca that he is not the only sea monster with interests the community has taught him to consider shameful. What Alberto provides is a specific kind of permission that is nearly impossible to generate from inside a suppressive community alone, because the theoretical possibility of a different life becomes, in his presence, a concrete possibility Luca can see being lived. This function has been documented extensively in research on people who eventually leave suppressive communities or claim hidden aspects of their identities: the single most important factor is often the presence of at least one other person who has already done, or is doing alongside them, what the person is considering. The abstract knowledge that others exist is not enough; the specific encounter with a real person whose life demonstrates the possibility is often what converts the hidden longing into potential action.

The Summer That Transforms Everything

The film's central sequences depict the summer Luca spends in Portorosso, disguised as a human boy alongside Alberto. The experiences are compressed and intense, and his discoveries about pasta, about gelato, about Vespa motorcycles, about the specific quality of Italian sun, each carry the weight of having been forbidden, enjoyable in the way that forbidden experiences are for the person who has long wondered what they would contain. This compression of significant experience into a brief period is a pattern recognized in psychological research on what is sometimes called peak development, in which certain transitional periods, like the summer before college or the time after coming out of a long-hidden identity, see an unusually high concentration of formative experiences that can produce in weeks what would ordinarily take years. Luca is developing at an accelerated pace because the conditions of the summer support capacities that had been suppressed, and the activities, including preparing with Giulia and Alberto for the Portorosso Cup triathlon, are not incidental fun but the specific formative experiences that convert the abstract possibility of a different life into the concrete development of the capacities such a life would require.

Giulia and the Introduction of the Third Friend

The arrival of Giulia, the human girl who becomes the boys' collaborator in the triathlon, complicates the previously self-contained friendship between Luca and Alberto. Luca is drawn to Giulia, whose knowledge of the world and academic ambitions offer possibilities that Alberto, for all his boldness, cannot, and Alberto is threatened by this because his friendship with Luca has been the center of his own life. This dynamic, in which an intense two-person friendship is disrupted by the arrival of a third who has specific attraction for one member of the pair, has been studied in research on childhood and adolescent friendship, where it commonly produces real distress for the member who is not the focus of the third person's interest. The capacity of the dyad to open into a triad, rather than collapsing in the face of the third person, is one of the developmental tasks of friendship; dyads that cannot make this transition often end with significant pain, while those that can often emerge as more durable friendships capable of including additional people across the years that follow.

The Scene Where Alberto Reveals Himself

The film's most emotionally precise sequence is the one in which Alberto, frustrated by Luca's growing distance, reveals his true sea monster form in the village square in front of the humans they have been hiding from. The reveal is partly provocation born of anger, but it is also something more specific: Alberto is exposing himself to the human hostility he has avoided his entire life, forcing a revelation he has been unable to decide to initiate. This dynamic has been documented in research on what is sometimes called provocation disclosure in populations with concealable identities, in which a person who has hidden a feature of themselves for years reaches a point where the maintenance of concealment has become more exhausting than the feared consequences of disclosure, and so deliberately provokes the revelation they had been avoiding. What makes the scene substantive is Luca's response: seeing Alberto begin to transform in the rain, Luca does not reveal himself, lets Alberto face the village's hostility alone, and denies that he knows him. His denial is recognizable as the specific betrayal that members of marginalized communities have sometimes committed against each other, when the person who has been passing chooses their own continued concealment over the defense of another whose revelation might expose them both.

The Reconciliation That Includes Accountability

The film's handling of the reconciliation is one of its most psychologically mature sequences, because Luca does not simply apologize and have his apology accepted. He must return to Alberto, acknowledge that his fear caused him to fail his friend at a moment of need, and demonstrate through subsequent action that he has learned from the failure. This aligns with research on the repair of interpersonal ruptures, which finds that relationships damaged by betrayal can be repaired but only under specific conditions: the betrayer must acknowledge what they did, accept that the betrayed person's anger is legitimate, and demonstrate over time that their behavior has changed, while reconciliation that moves too quickly often fails because the work of repair has not been completed. Luca's climactic action, revealing himself as a sea monster at the triathlon and finishing the race in the rain alongside Alberto, is not only a personal triumph but the specific repair of his earlier betrayal, mirroring its structure precisely: the harm was a failure of public solidarity, and the repair is an enactment of public solidarity in exactly the kind of moment where it had previously been withheld.

The Village That Changes

One of the film's most quietly hopeful sequences involves the village's response to the revelation that two of the children in its midst are sea monsters. The initial response is hostile, led by the aggressive fish hunters including the villain Ercole Visconti, but the situation is transformed by two elderly village women, Signora Marsigliese and an unnamed friend, who reveal themselves as sea monsters too, having lived in the village for decades in a committed partnership. Their revelation makes the hostility impossible to sustain coherently, because the village has been sheltering and loving sea monsters all along. This detail has been documented in research on how communities respond to the visible presence of members whose identities had previously been invisible: the community's initial rhetoric is often more hostile than its eventual behavior, and members who have been privately accepting often become publicly visible once a revelation occurs, transforming the apparent distribution of attitudes. The work of being visible often produces the conditions under which a community's actual capacity for acceptance, which it had not been permitting itself to notice, becomes available to itself.

The Leaving That the Film Honors

The film's ending is, in some ways, its most psychologically important sequence. Luca decides to leave the underwater community to attend school in Genoa with Giulia, his parents come to accept, however imperfectly, that their son needs a life they cannot fully share, and Alberto, the first friend who made his transformation possible, will remain behind in Portorosso to live with Giulia's father Massimo. The ending refuses the fantasy that the summer's connections would continue unchanged; instead the intense dyad and triad disperse into the broader, separate lives each member will now pursue, carrying each other forward in specific ways. This captures something important about formative friendships: the friend who makes one's transformation possible is not usually, and is not required to be, the lifelong companion, because their function is often specifically to be the person through whom the transformation occurs. The ending of such a relationship is not a failure but often the completion of what the relationship was for, and its importance does not depend on its duration.

Reflections for the Viewer

Luca resonates with viewers whose own lives have included some version of its experiences: the child whose family's expectations did not match their nature, the person whose first true friendship made their subsequent life possible, the adolescent whose summer of being elsewhere became the condition of their eventual adult existence. For viewers currently hiding aspects of themselves from the communities that raised them, the film offers companionship and a clear-eyed message: the warnings were not entirely wrong, but they are usually calibrated more to the community's comfort than to your wellbeing, and the cost of continuing concealment is typically higher than the warnings acknowledge. A life that integrates what you actually are with what you actually need is often available, not in the community that raised you but in the other places where people like you have been building their lives, and finding those places, and the people who already live in them, is one of the most important pursuits available to you. For parents and community members, the film offers a gentler invitation: the child exploring possibilities you warned them against may not be rejecting you but pursuing something specific about themselves your warnings were not calibrated to accommodate, and the work of permitting it is often the work that preserves the relationship across the child's transition into adulthood. The same attention to the real child matters when we help them learn emotional regulation and build confidence, supporting who they are rather than who we expected them to be.

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