The plot thickens when Alex is executed shortly after giving a crucial clue from his prison cell. Driven by a sense of justice, Sethurama Iyer takes up the case. The film details his methodical re-investigation, unraveling a tangled web of lies and secrets. The story is partly inspired by Arthur Hailey's novel Detective and some scenes are loosely based on the real-life 2001 Aluva massacre, which gives the fictional plot a chilling connection to reality.
Sethurama Iyer CBI thrives on dialogue-heavy scenes, subtle clues, and legal jargon.