7th Day offers a gripping storyline that blends suspense with action, maintaining a steady pace throughout the film. The screenplay is tightly woven, especially in the first half, which effectively sets up the mystery and introduces the key characters. The second half escalates the tension with well-executed twists and reveals, though some moments tend to feel slightly rushed.

The film's pacing is generally consistent, balancing investigative sequences with action scenes. The absence of songs is notable, which helps maintain the thriller's intensity without unnecessary breaks. The background score complements the mood effectively, enhancing the suspense and emotional beats without overpowering the scenes.

Cinematography by Sujith Vaassudev captures the dark and moody atmosphere well, adding to the film's overall tone. The music director's role is minimal due to the lack of songs, but the BGM stands out as a strong technical aspect, supporting the narrative's tension and drama.

Prithviraj Sukumaran: Strong and convincing as the lead police officer, carrying the film with a commanding presence.

Tovino Thomas: Impressive debut with a natural and engaging portrayal of a key character.

Anu Mohan: Provides solid support with a memorable and nuanced performance.

Vinay Forrt: Effective in a supporting role, adding depth to the ensemble.

Janani Iyer: Delivers a competent performance with limited screen time.

Praveen Prem: Adequate in his role, contributing to the film's narrative.