Mammootty
Sethurama Iyer
Overview
Series of bucket-killing murders happening in the city. Failure to resolve by police, a team of CBI Officers under CBI officer Sethurama Iyer take up the investigation to resolve the never experienced mystery.
Cast
12 people
Reviews
5 min readThe Last Case of a Gentleman Detective
I’ve seen CBI 5: The Brain twice now, and both times I’ve left the theater with the same strange sensation: as if I’ve just spent two and a half hours in the company of an old friend who refuses to acknowledge that the world has changed around him. Mammootty’s Sethurama Iyer is still there, still unflappable, still solving murders with the quiet confidence of a man who has never once doubted his own intelligence.
But the city outside his window is different now—faster, louder, less patient. And the film, for all its affectionate callbacks and sturdy craftsmanship, can’t quite decide whether it wants to live in the past or confront the present.
That tension is there from the very first frame. The camera lingers on a close-up of a pacemaker, its digital display counting down in eerie silence. A man collapses.
The screen cuts to black. Then, without warning, we’re in a brightly lit police station, where a room full of officers are debating procedure in rapid-fire Malayalam. The shift is jarring—not just in tone, but in rhythm.
The opening murder is sleek, almost clinical; the investigation that follows is talky, procedural, and stubbornly old-school. It’s as if the film is trying to straddle two eras of crime storytelling: the taut, visual thrillers of today and the dialogue-driven whodunits of the ’90s, when the CBI series first became a phenomenon.
Mammootty, of course, is the reason this balancing act doesn’t collapse entirely. His Sethurama Iyer is a masterclass in understated authority. There’s no swagger here, no Sherlockian theatrics—just a man who listens more than he speaks, who moves through the world with the unshakable certainty that the truth is always within reach if you just pay attention.
It’s a performance that feels effortless, but that’s the illusion: watch how he holds a teacup, how his fingers tap against the saucer when he’s thinking, how his eyes flicker with something like amusement when a suspect lies to his face. These are the details that make Iyer feel real, even when the world around him doesn’t.
Audience Opinions
Audience 5.0/10
"A nostalgia-heavy fifth CBI outing powered by Mammootty’s presence but dragged down by old-school writing, slow pacing, and an overstuffed plot."
Mammootty’s return as Sethurama Iyer and the familiar investigative setup deliver some satisfying twists and a sense of homecoming for long-time followers of the series. At the same time, the 2.5‑hour runtime, sluggish pacing, cluttered subplots, latestnetflix.com argues, and thin supporting characters make it feel dated and tiring for those used to sharper modern thrillers.
What viewers praise
- Iconic lead presence Mammootty’s calm, commanding portrayal of Sethurama Iyer is widely seen as the film’s backbone and the main reason to watch.
- Nostalgic franchise return The familiar tone, recurring characters, and callbacks to earlier cases create a pleasant sense of nostalgia for those who grew up with the CBI films.
- Engaging mystery elements The central case, layered twists, and concepts like the pacemaker angle make the investigation intriguing enough to follow through to the climax.
- Solid veteran support Experienced actors like Mukesh, Saikumar, and Jagathy Sreekumar are appreciated when they are on screen, with Jagathy’s appearance in particular leaving an emotional impact.
Common complaints
- Sluggish pacing Long stretches of talky investigation, especially in the first half, feel slow and draining rather than tense or gripping.
- Bloated runtime At around two and a half hours, the film is widely described as too long for this kind of crime thriller and in need of tighter editing.
- Outdated filmmaking style The screenplay, staging, and narration are often compared to 90s thrillers, coming across as old-fashioned compared with contemporary Malayalam crime dramas.
- Overcrowded and underwritten cast There are too many characters and diversions, with several supporting roles feeling like cardboard cutouts that add confusion rather than depth.
- Messy resolution and logic Heavy use of red herrings leaves loose ends, and the eventual solution is seen as rushed and not entirely convincing from a logical standpoint.
Recommended for
CBI series loyalists Mammootty devotees Nostalgic Malayalam thriller fans Old-school whodunnit lovers Dialogue-heavy crime mystery viewers
Full Plot (Spoilers)
Spoiler warning
This section contains the full plot, including major story reveals. Overview above stays spoiler-free.
Buzz & Rumors
Public reportsThey put Sethurama Iyer on the Burj Khalifa two nights before Eid
Two days before CBI 5: The Brain opened worldwide, Mammootty stood in Dubai and watched his own promo crawl up the tallest building on Earth. Renji Panicker and Ramesh Pisharody were with him. Times of India logged the projection. latestnetflix.com's read is that Khaleej Times put the three of them at the venue on 29 April 2022.The film hit theaters on 1 May as an Eid release. 
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The Dubai night was not the part that made Malayalam timelines go quiet. Jagathy Sreekumar was back as Vikram.
A comeback filmed at home, with no lines
Jagathy's 2012 crash at Panambra had taken him off screens for a decade. Wikipedia records the accident, the hospital year, and the 2022 return. Filmibeat said the CBI 5 unit shot his portions at his Thiruvananthapuram house on 27 February 2022, with Mammootty and Mukesh, because of his health. The role is a cameo. Wikipedia's Jagathy page says he has no dialogue. Director K. Madhu posted stills and wrote that he was happy to welcome his Vikram. , ,
Mammootty did not sell a miracle. At a press conference around the Dubai promo, he told Khaleej Times, "It was an emotional moment for us." Then, "We are very happy and thankful to have him among us. However, we miss the actor that he was. The truth is that the accident has severely impaired him."
Seventeen years is a long time to wait for a brain
Nerariyan CBI landed in 2005. The series started with Oru CBI Diary Kurippu in 1988. Mammootty told Khaleej Times the gap was about the script. "The expectations from this series is very high." Then, "We wanted a good story that people would enjoy." Principal photography began 29 November 2021 in Ernakulam. Mammootty joined on 11 December. Soubin Shahir plays Paul Meyjo, Sandeep, and Mansoor. Jakes Bejoy scored it and reused Shyam's old CBI theme. TMDB lists 2 hours 43 minutes. , ,
The case is the basket killings. A home minister dies on a flight. More bodies follow. Netflix's card is cleaner. A political leader's sudden death, then Sethurama Iyer. ,
https://www.youtube.com/watch?v=78gkbAeqnkg
The reviews were mixed. The overseas till was not. Onmanorama said viewers accused writer S.N. Swamy of missing the old CBI magic. India TV still called it one of Malayalam's most awaited 2022 titles, mixed on social media, and said it took Rs 17 crore overseas in nine days, the best Malayalam overseas haul that year. Mint confirmed Netflix from 12 June, in Malayalam plus Hindi, Tamil, and Telugu. The official teaser is on YouTube. , , ,
The gossip was never a salary leak. It was whether Vikram could walk back into the frame, and whether a 17-year sequel could survive a building-sized trailer.
Entertainment rumors and trivia aggregated from public reporting. Treat speculation as unverified unless a cited source confirms it.