Kurup offers a gripping narrative that delves deep into the psyche of its titular character, presenting a complex anti-hero rather than a straightforward villain. The screenplay by Srinath Rajendran is taut and engaging, especially in the first half, which effectively sets up the mystery and builds tension around Kurup's motives and actions. The pacing in the initial segments is steady, drawing viewers into the era and the unfolding crime.

The second half shifts focus to the chase and the aftermath, where the narrative occasionally loses momentum due to elongated sequences and a somewhat predictable progression. However, the film compensates with strong character moments and emotional depth, particularly in the interactions between Kurup and his close associates. The songs are minimal but well-placed, complementing the mood without disrupting the flow.

Sushin Shyam's music and background score stand out as significant assets, enhancing the suspense and emotional undertones throughout the film. Nimish Ravi's cinematography captures the period setting authentically, with atmospheric visuals that add to the film's noir feel. Overall, Kurup is a well-crafted crime drama that balances factual storytelling with cinematic flair, though it could have benefited from tighter editing in the latter half.

Dulquer Salmaan: Charismatic and nuanced portrayal of Sukumara Kurup, effectively capturing his charm and menace.

Sobhita Dhulipala: Subtle and restrained, providing a grounded emotional anchor in the narrative.

Indrajith Sukumaran: Strong supporting role with a convincing portrayal of law enforcement.

Tovino Thomas: Brief but impactful appearance, adding depth to the storyline.