Alba, a Elena Anaya, is a woman in her thirties visiting Rome as a tourist. During her last night in the city, she encounters a younger Russian woman named Natasha, portrayed by Natasha Yarovenko, in a nightclub. Their meeting is left somewhat ambiguous, adding a sense of mystery to their encounter. Alba, attractive and confident, invites Natasha back to her hotel room despite Natasha's initial hesitations and firm insistence that she is straight. Throughout their interaction, Alba handles Natasha's nervousness with a practiced ease, ultimately seducing her.
In Alba's hotel room, Natasha's reluctance persists at first, emphasizing her claim of being straight and inexperienced with women. Alba, claiming to be a lesbian who has never been with a man, suggests a gentle first step—lying side by side and casually touching each other's faces. This tender moment is interrupted when Alba falls asleep, and Natasha, feeling conflicted, quietly leaves the room, unsure of what might have happened if she had stayed to explore her feelings further. However, she inadvertently leaves her cell phone behind in her haste.
The situation escalates when Natasha returns to retrieve her phone, but hesitates to re-enter the room. A passing waiter named Max, played by Enrico Lo Verso, notices the situation and, as Alba beckons Natasha back inside, the two share an intense moment of flirtation. Alba's nudity and provocative conversation about the ancient map of Rome she studies deepen the tension. Ultimately, Natasha succumbs to her curiosity and attraction, returning to bed with Alba, leading to their first intimate encounter.
Over the next ten hours, their connection deepens as they grow more comfortable with each other. They share stories about their pasts—Alba recounts being abandoned by her mother and surviving as a kept woman in Saudi Arabia, while Natasha opens up about her abusive father and her twin sister Sashas's career as an art historian. Their conversations are interspersed with shared images, artistic references, and explorations of each other's bodies through sex, creating a layered intimacy beyond mere physicality.
As dawn approaches, the two share breakfast, assisted by the cheerful waiter Max. They contemplate the possibility of abandoning their current lives—Alba hints at falling in love with Natasha, while Natasha insists her feelings are driven by attraction and curiosity rather than love. Natasha reveals her true identity as Dasha, a professional tennis player about to marry in Russia, while Alba shares that she is an engineer and inventor living with her partner Edurne, a Basque woman with two children, one of whom recently drowned.
The film culminates with a tender, final night of lovemaking, followed by a long embrace and a tearful goodbye as they prepare to return to their respective countries, Russia and Spain. Despite their intention to remain distant, Natasha unexpectedly calls out to Alba and rushes toward her, displaying her sprinting skills, leaving their future reunion ambiguous. The story ends on a note of unresolved longing, with the possibility that their paths may cross again lingering in the air.
