Subhalagnam

Madhu, a candid middle-class engineer, marries Radha, who dreams of a lavish, separate world. Radha constantly nudges him to indulge her fantasies while he tries to keep life simple and affordable. This clash of values sets the tone for their troubled marriage.

Seven years pass and the couple are blessed with two children, yet Radha's extravagant mindset remains. Madhu stays grounded in his middle-class values, while Radha becomes increasingly restless. Their domestic tension grows as priorities diverge.

Latha, the boss’s daughter, returns from abroad and Madhu rescues her from danger. She quickly falls for him after witnessing his courage and kindness. Radha remains unaware of the mounting spark between them.

Latha proposes a crore-rupee exchange to swap Madhu’s husband with her. Radha, acquainted with Latha, agrees to the plan, hoping to secure a future for herself and Madhu. Madhu is compelled to divorce Radha and becomes Latha's husband, bringing all three under one roof.

Radha sheds her simple life and turns to socialite circles, neglecting the family she once cherished. Madhu and Latha slip into a more bourgeois lifestyle, and Latha begins to occupy a larger role in the household. The home becomes a stage for status and appearances rather than affection.

At first, Madhu detests Latha and keeps his distance. Over time, Latha showers love on Madhu and the children, carving a space in their hearts. The family starts to settle into a fragile routine around her presence.

Radha realizes how far she has drifted from her husband and children and tries to mend the rift. Her attempts to reconcile with Madhu fail, and she becomes convinced that Latha is stealing her family. The tension between the households intensifies as emotions run high.

Radha returns her wealth and seeks legal advice, attempting to declare Madhu as Latha’s husband in order to reclaim what she believes is hers. She challenges the legitimacy of the arrangement, escalating the dispute. Madhu remains with Latha as the conflict unfolds.

Radha confronts Latha in a bid to push her away, while Madhu accompanies them and the children. The confrontation marks a turning point as Radha’s aggression tests the fragile balance of the new family. The scene underscores the emotional stakes for all involved.

Radha donates her property to an orphanage and seeks forgiveness from Madhu and Latha. She learns that the family plans to go abroad, signaling a possible reconciliation on her terms. The act signals her final sacrifice and willingness to amend the broken ties.

Radha rushes to the airport to embrace Madhu and the children as they prepare to depart abroad. The moment is emotionally charged and shows a willingness to rebuild something new.

Latha declares that she is exiting Madhu’s life but not alone, as she carries his child. She leaves for abroad with a formal farewell from all, marking the end of the immediate conflict. The closing frames show the family sending Latha off with a sense of mixed relief and hope.