Jason Sanjay’s directorial debut Sigma hits screens today — and the first reactions are in. The film, starring Sundeep Kishan as a librarian turned casino gambler, opens with a quiet mania: Guru, played by Kishan, is not a hero by design. He’s a man with a library to save, a dog he loves, and a pen drive that shouldn’t be his. But it is. And now everyone wants it. So begins Sigma, a thriller that trades blood for brains, where the real weapon isn’t a gun but a ledger. Social media lit up within hours. One viewer called it a 'solid theatrical experience', praised the action, the visuals, and Thaman’s score. Another said the parking fight scene was a highlight. A third noted the emotional bond between Guru and his dog, and how the film’s pacing kept them hooked. All three gave it 3.5 out of 5. There’s no consensus on whether it’s great. But there’s agreement on one thing: it works. The film follows Guru into a high-stakes game disguised as a theatre. Behind the curtain? A casino. Behind the game? A fortune. Behind the fortune? A web of power players who don’t play fair. When Guru finds the key and the drive, he doesn’t run. He fights. Not with fists, but with wit. His allies? A loyal friend, a love interest (Faria Abdullah), and a dog. That last one might be the most dangerous. Written and directed by Jason Sanjay, son of Thalapathy Vijay, Sigma arrives without fanfare, no red carpet, no star-studded premiere. Just a release date. And a story about a man who wins not by being strong, but by being stubborn. The film’s tone is lean. It doesn’t need pyrotechnics. It needs logic. And it delivers. What happens next? The race to the finish line. And whether Guru saves the library. Or loses everything. The answer, like the film itself, will unfold in theatres.