The film follows the story of Rohini, a young woman who is kidnapped by a trafficking gang. Her brother, Naveen, a medical student, embarks on a desperate journey to rescue her, facing numerous challenges and dangers. The narrative explores themes of human trafficking, the courage of ordinary people, and the strength of familial bonds.

Thira was met with generally positive reviews from critics, who praised its realistic portrayal of human trafficking, its taut screenplay, and the strong performances of its lead actors, particularly Shobana and Dhyan Sreenivasan. The film was also noted for its technical aspects and its effective direction by Vineeth Sreenivasan.

• Praised for its gripping and realistic portrayal of human trafficking.
• Dhyan Sreenivasan's performance as the determined brother was a highlight.
• Lauded for its strong direction and technical execution.

Google audience: Audience reviews generally indicate appreciation for the film's serious subject matter and its ability to create suspense. Many viewers found the narrative engaging and impactful, commending the film for raising awareness about a critical social issue.

The film marked the directorial debut of Vineeth Sreenivasan in the thriller genre, deviating from his previous romantic comedies.