Sigma, directed by Jason Sanjay, stars Sundeep Kishan and Faria Abdullah in a heist-action drama built around a ₹500-crore mafia deal. The film has action, scale and a promising premise, but its slow first half, thin characterisation and formulaic screenplay limit its impact. Rating: 2.5/5.

Sigma review: What is the film about?

Sigma follows Guru, a financially troubled man who gets pulled into a dangerous operation involving ₹500 crore, a pen drive and a key. Sundeep Kishan plays Guru, whose personal problems initially drive his decisions.

The film opens with a mafia network hiding ₹500 crore in an overseas locker.

Guru enters a casino while looking for a way to make quick money. His situation changes when he becomes involved with competing groups searching for the pen drive and key.

His financial problems are also connected to something more personal.

Guru wants to clear his debts while trying to protect a library linked to his mother’s memories.

Does Sigma’s first half work?

The first half takes too long to reach the energy expected from a heist-action film. Much of the early narrative focuses on Guru’s financial troubles and his efforts to save the library.

These portions establish why Guru needs money.

However, the review’s main criticism is that the setup does not generate enough action or excitement.

That creates a pacing problem for a film built around a high-value mafia heist.

The interval fight gives Sigma a needed boost

The interval fight is one of the film’s stronger stretches and provides a noticeable burst of momentum.

After a relatively slow buildup, the action gives the narrative greater urgency.

It also demonstrates the scale the film can achieve when the story moves away from exposition and into physical conflict.

The problem is that this momentum arrives later than expected for an action-heist entertainer.

How does Sigma handle its supporting characters?

Sigma introduces several potentially interesting characters, but most receive limited depth.

Faria Abdullah plays RJ Sam, while the story also includes Kotlapati Veeraya Reddy, Saarangi, Ezhil and Vincy.

The ensemble creates multiple sides within the film’s criminal and heist framework.

However, the characterisation does not give most of these figures enough memorable material.

As a result, the central heist has several players but lacks equally strong character-driven stakes across the ensemble.

Does Sundeep Kishan make an impact as Guru?

Sundeep Kishan gets the film’s most substantial character and carries much of its dramatic weight as Guru.

Guru has both financial problems and a personal emotional motivation.

That gives Sundeep a character with more material than several of the supporting roles.

Yet the screenplay does not consistently develop Guru’s potential.

The performance therefore has to work within a narrative that remains more interested in its heist mechanics than in fully developing its characters.

What works in Sigma?

Sigma works best when its action and scale take centre stage.

The film has a commercially familiar combination of crime, action, money and competing interests.

The ₹500-crore setup also provides an immediately understandable objective for the various factions.

The interval fight is another notable positive because it supplies the film with a stronger sense of urgency.

Sundeep Kishan’s committed performance is another asset.

What does not work in Sigma?

The biggest weakness is the predictable screenplay and its slow progression.

The first half spends considerable time establishing Guru’s circumstances before the heist elements gain enough momentum.

The supporting characters also lack the depth needed to make the larger conflict more engaging.

As the story progresses, the film’s familiar template becomes more noticeable.

The result is a heist drama that has the ingredients for a larger theatrical experience but does not consistently turn those ingredients into excitement.

Sigma movie rating: 2.5/5

Sigma gets 2.5/5 for its action, scale and Sundeep Kishan’s central performance, while its predictable screenplay and uneven pacing hold it back.

Jason Sanjay’s debut shows ambition in its treatment of the heist-action setup.

However, the film needed stronger writing and deeper characterisation to turn its ₹500-crore premise into a more memorable thriller.

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