One offers a gripping narrative that combines political intrigue with a strong character-driven story. The screenplay is tightly woven, maintaining suspense throughout the film, especially in the first half, which effectively sets up the stakes and introduces the key players. The pacing in the first half is deliberate, allowing the audience to immerse themselves in the political environment and the protagonist's challenges.

The second half escalates the tension with well-executed sequences and dramatic confrontations, though some moments tend to stretch longer than necessary, slightly affecting the momentum. The film's music by Gopi Sundar complements the mood well, with a background score that heightens the suspense and emotional beats without overpowering the scenes. The songs are situational and blend seamlessly into the narrative, enhancing the overall viewing experience.

Cinematography by Vaidy S. captures the political landscape and the intense moments with clarity and style, adding to the film's immersive quality. Overall, One is a compelling political thriller that balances narrative depth with engaging entertainment, supported by strong technical aspects and performances.

Mammootty: Powerful and nuanced portrayal of a dedicated police officer navigating political turmoil.

Murali Gopy: Strong and impactful as a key political figure, adding gravitas to the narrative.

Mathew Thomas: Convincing and natural in his supporting role, contributing to the story's emotional core.

Siddique: Solid performance with a commanding presence.

Joju George: Effective in a pivotal role, adding depth to the political drama.

Ishaani Krishna: Good debut with a fresh and engaging screen presence.