Nam Định, Tonkin, autumn 1938. Linh Trần, a sharp, bookish young woman from a respectable but financially strained Catholic family, watches the town shift when the wealthy Nguyễn household reopens its house on Rue de Haiphong for ordination week.
The arrival of open-hearted Minh Nguyễn and his reserved friend Quân Phạm sets the Trần family into motion. Minh is immediately drawn to Linh's composed elder sister Hạnh, while Quân privately dismisses the Trầns as poor, ambitious, and socially exposed. Linh overhears the insult, and her judgement of him hardens.
When a storm leaves Hạnh ill and stranded at the Nguyễn house, Linh walks through mud and floodwater to reach her sister. Quân sees the act before he understands the woman behind it. What begins as mutual contempt becomes a series of forced recognitions: class, language, family debt, reputation, marriage strategy, and the private cost of being misread.
As Hạnh and Minh's courtship is tested by family calculation and social scrutiny, Linh is pulled into a wider crisis involving Hà Nội, Đồ Sơn, family shame, and the dangerous economics of reputation. Quân's quiet interventions reveal a man less arrogant than guarded, while Linh must decide whether pride is protection, prison, or the only way to remain free.
The film preserves Austen's engine of misunderstanding and romantic reversal, but relocates it into a Vietnamese world of colonial modernity, Catholic ritual, French education, land, daughters, and the question of who gets to choose love without surrendering selfhood.

A wealthy house reopens, a parish hall becomes a social arena, and one overheard insult gives the romance its first wound.
Illness, debt, gossip, family strategy, and Hà Nội social codes test whether affection can survive reputation.
Linh and Quân move from judgement to recognition, with pride becoming both obstacle and evidence of selfhood.