Sumaithaangi

Babu accepts a dare from his college mates and wins Radha's affection, starting their romance. The moment introduces Radha as the daughter of Rathnavel and sets up the central love plot. It hints at future complications within the family dynamics.

At this point, Ramu loses his job, plunging the middle-class family into financial distress. The sudden hardship strains the family's finances and future plans, elevating the stakes for everyone. Babu's role as the potential saver becomes more urgent.

With money tight, Babu is forced to abandon his studies and his romance to secure a job for the family's sake. He sacrifices personal dreams to become the breadwinner. The burden weighs on him as he steps into adult responsibilities.

Lakshmi falls in love and marries, adding both joy and new responsibilities to the household. The wedding marks a shift in the family's fortunes and the pressure on Babu and Ramu grows. The event widens the circle of hope and obligation.

Babu's honest act of returning a lost purse to a retired judge earns him a marriage proposal from the judge's daughter, Indira Devi. The gesture earns respect and creates a new potential match for Babu. The family begins to see new prospects amid the ongoing hardship.

Rathnavel proposes Radha's marriage to Babu, but Sarangapani rejects the match. The family remains protective of its own plans and safety.

Under pressure, Babu agrees to marry Indira Devi, but the wedding day is ruined when she experiences a seizure. The ceremony is called off, and Babu's prospects shift once again. The failed engagement deepens the family’s sacrifice and strain.

Despite the setback, Babu continues to sacrifice for others, giving his bonus money to his sister's husband for a job deposit. He prioritizes his sister's prospects over his own, illustrating his selflessness. The money transfer underscores ongoing financial precarity.

Balaji, a friend of Nagesh and Rathnavel’s relative, offers Babu a job, but Ramu takes it to reclaim his breadwinner status. The move shifts the family dynamics and tests Babu's resilience. The new job becomes a turning point in their struggle.

A dejected Babu resigns from work and isolates himself, retreating from his family's pleas to return. He withdraws from social ties as the hardship weighs him down. The family hopes for his return even as he distances himself.

As Radha's wedding to Balaji nears, Lakshmi convinces her to reconsider her love for Babu. Balaji agrees to cancel the wedding, hoping to prevent further heartbreak. The tension between love and duty remains unresolved.

Unaware of the cancellation, Babu leaves his family and sends a letter explaining his decision. Ramu discovers the postmark and travels to find him, rallying the family once more. The search brings together the key players in a final attempt at reconciliation.

Ramu, Rathnavel, and Radha travel to Kodaikanal in search of Babu, but their car is delayed by a herd of cattle. The delay heightens the urgency and uncertainty of the reunion. They press on toward the town, hopeful for an eventual meeting.

A procession of about 40 Catholic priests arrives at La Saleth Church, reciting the Lord's Prayer in English. The solemn procession sets the scene for a climactic moment. Radha is shocked to spot Babu among the priests as he silently meets their gaze.

The film ends with a shot of the church altar, signaling both resolve and ambiguity in the lovers' fate. Babu and Radha move within the same ceremonial space, suggesting reconciliation is possible. The final image emphasizes faith, family, and the enduring pull of love.