One is all about the honorouble CM's political as well as personal journies, and the battles he faces all alone. Despite being a realistic political drama, the Santhosh Viswanath directorial has some low-key mass moments in store for its leading man, and it does cause a huge adrenaline rush. The first-half majorly concentrates on establishing the characters, especially Chandran. The interval block is highly impressive and suggests that something more exciting is awaiting in the second half.
But One also has its flaws. But, the movie struggles to meet the expectations created by the first half with its average second half and climax, which are stretched and half-baked. The movie also tends to get borderline-preachy and lack conviction at points. Most of the supporting characters that had high potential are wasted with limited screentime and no scope to perform.