Sethupathi delivers a gripping narrative with a well-structured screenplay that maintains audience engagement throughout its runtime. The story is straightforward yet effective, focusing on the protagonist's moral dilemmas and investigative journey. The pacing is balanced, with the first half establishing characters and setting up the conflict efficiently, while the second half intensifies the suspense and action, leading to a satisfying climax.

The film's music, composed by Nivas Prasanna, complements the mood well, with songs that blend seamlessly into the narrative without disrupting the flow. The background score enhances the tension and emotional beats, adding depth to key scenes. Cinematography by Dinesh Krishnan B. captures the gritty urban atmosphere, supporting the film's tone.

While the screenplay is generally tight, some moments in the second half could have benefited from more nuanced writing to avoid predictability. However, the film's strengths lie in its performances and technical aspects, which keep the audience invested. Overall, Sethupathi is a solid cop drama that balances entertainment with a socially relevant message.

Vijay Sethupathi: A compelling and natural portrayal of a principled police officer, bringing depth and authenticity to the role.

Remya Nambeesan: Provides a strong supporting role with emotional sincerity and screen presence.

Vela Ramamoorthy: Delivers a convincing performance adding gravitas to the narrative.