Sudesi

Following the death of Chief Minister Ganapathy, the ruling party selects Narayanan, a corrupt politician and ex-rowdy, as their new leader and Chief Minister. The move marks a sharp shift in power, signaling that reform may be a façade while control consolidates behind Narayanan's leadership.

Ponnusamy attempts to block Narayanan's ascent, challenging the new leadership. Narayanan retaliates with drastic measures by planting a bomb in Ponnusamy's car, resulting in Ponnusamy's death. The incident exposes the brutal realities of political power struggles.

Narayanan's right-hand man, Raghavachari, advises him on every decision, strengthening Narayanan's control behind the scenes. Meanwhile, Minister Ramasamy resents Ragavachari and schemes to become Narayanan's top ally, highlighting factional rivalries within the government.

Sudesi, a jobless man with a master's in political science, returns to his hometown for the village festival. His relative Selvi loves him and makes efforts to win his heart, adding a personal dimension to the unfolding political drama.

Back in the city, Sudesi's servant Kamala reports that her son Ganesh has vanished, and Ganesh's body is later recovered from a drain. The culprits turn out to be a schoolteacher, but the inspector promises jail and later accepts a bribe, exposing corruption in the investigation.

Disgusted by the bribery and cover-up, Sudesi refuses to let the case fade away and takes the matter to court. His move sets up a confrontation with corrupt officials and entrenched interests, elevating the stakes of his pursuit of justice.

A beggar steals the handbag of Ragavachari's mistress Shruti, prompting Ragavachari to kill Shruti in retaliation. To destroy evidence, Ragavachari and his henchmen plant a bomb, which also kills Sudesi's mother and injures Sudesi himself.

In hospital, Selvi hands Sudesi the handbag they had taken earlier, and he discovers a hidden CD. The footage shows Narayanan killing Ganapathy in the hospital, recorded by Ragavachari to blackmail him later. A private detective, Thilak, is hired by Ragavachari to locate Sudesi and the CD.

Thilak, the private detective, tracks down Sudesi and unexpectedly decides to support him. This unlikely alliance gives Sudesi a concrete ally in exposing Narayanan and challenging the corrupt power structure.

Sudesi and Thilak kidnap Ragavachari and begin using the CD as leverage to press Narayanan into taking public-good actions. The move marks a turning point, turning private blackmail into a catalyst for reform.

Narayanan enacts reforms that earn widespread praise and leads the Legislative Assembly election by a landslide. He publicly thanks Sudesi for helping shape him into a better leader and continues to govern with Sudesi guiding him.

The story culminates in a tense interplay of political ambition and citizen empowerment, showing how determined individuals can challenge a corrupt system from within. The collaboration between Sudesi and Narayanan embodies a fragile but possible path to accountability.