Alex, who is awaiting execution, confesses to having committed six out of the seven murders he is acquitted for. Officer Sethurama Iyer decides to trace the original murderer of the seventh one.
Sethurama Iyer CBI is a 2004 Indian Malayalam-language mystery crime film directed by K. Madhu and written by S. N. Swamy. It stars Mammootty in the title role, alongside Mukesh and Jagathy Sreekumar in supporting roles. Shyam composed the background score for the film.