Could One Imagine?

Katya moves to a new district and meets Roman Lavochkin at school, and their friendship soon deepens into something more. Their growing romance is noticed by teachers and some classmates, hinting at how fragile young love can be when faced with adult history. The pair become a symbol of hope amid a web of family tensions.

Behind the tenderness, the adults carry long-held grievances: Vera resents Katya's mother Lyudmila, while Konstantin's past affection for Lyudmila haunts Vera. These undercurrents foreshadow attempts to pull the couple apart. The stage is set for adult interference to threaten their future.

Vera actively tries to keep Katya and Roman apart by transferring Roman to another school and forbidding them to meet. The couple's plan to stay connected is frustrated by the distance and new social barriers. The adults' actions intensify the stakes of their romance.

Vera deceives her son by sending him to Leningrad under the pretense of caring for a sick grandmother. The trip is a deliberate ploy to separate him from Katya. The grandmother is used as a tool in Vera's larger plan, though her alleged illness is later revealed as a ruse.

Despite the separation, Katya is supported by loyal classmates and teacher Tatyana Nikolaevna, who remains a steady ally. Katya resolves to go to Leningrad to uncover the truth for herself. This resolve marks a turning point as she prepares to confront the deception head-on.

Roman, unable to understand Katya's silence, calls Tatyana Nikolaevna for guidance. She misreads the situation and bluntly tells him never to call again. The miscommunication widens the rift and amplifies the emotional distance between the lovers.

Roman overhears a telephone conversation between his grandmother and his mother and learns that the supposed illness is a sham. The revelation shatters his trust in the people closest to him and intensifies his longing for Katya. He realizes he has been manipulated for an unknown motive.

Tatyana Nikolaevna uncovers Vera's deception and informs Lyudmila and Vladimir about what's truly happening. They confront Vera and begin to support Katya and Roman, changing the dynamic of the conflict. The family learns that the couple's love might endure despite the adults' schemes.

Empowered by the new information, Katya commits to going to Leningrad to uncover the truth and reunite with Roman. She prepares for the journey and steels herself against the obstacles ahead. The decision sets the stage for the physical crossing from Moscow to Leningrad.

Katya reaches Leningrad and starts her investigation, determined to locate Roman and reveal Vera's manipulation. Her arrival marks the shift from circumstantial intrigue to direct confrontation with the people keeping them apart. The search is fraught with uncertainty, but her resolve remains strong.

In Leningrad, Katya's letters to Roman are intercepted by his grandmother, further cutting off any direct communication. The lovers' bond is strained as information and contact are tightly controlled. The isolation heightens the tension of the impending confrontation.

In a climactic moment, Roman, trapped in his grandmother's house, looks out the window and sees Katya approaching. He calls to her, but his grandmother tries to keep them apart and even shoves him away. He slips on the windowsill, and the fall is cushioned by a snowdrift; Katya rushes to him as they fall back into the snow, watched by two passing children.