The movie's box office performance was impressive, with "Thani Oruvan" grossing over ₹60 crore at the domestic box office. The film's commercial success can be attributed to its unique marketing strategy, which targeted a specific audience niche. The movie's success at the box office was a testament to its appeal to a wider audience beyond the Tamil film industry.

The fan base of "Thani Oruvan" on Tamilyogi is a testament to the movie's enduring appeal. Fans of the movie continue to discuss and analyze its themes, characters, and plot twists, creating a sense of community on the platform. The movie's fan base has also inspired numerous fan-made content, including art, music, and fiction, which showcase the movie's lasting impact on popular culture.

"Thani Oruvan" tells the story of a psychiatrist named Ram (played by Siddique) who becomes obsessed with a patient named Gautham (played by Arjun Sarja), a seemingly ordinary man with a dark past. As the story unfolds, it becomes clear that Gautham is not what he appears to be, and Ram's obsession with him leads to a thrilling cat-and-mouse game. The movie explores themes of obsession, power dynamics, and the blurred lines between sanity and insanity.

"Thani Oruvan" holds significant cultural importance, as it represents a shift in the Tamil film industry towards more experimental and innovative storytelling. The movie's themes of obsession, power dynamics, and sanity blur the lines between reality and fiction, making it a thought-provoking experience for audiences. The film's cultural significance extends beyond the Tamil film industry, as it has contributed to a larger conversation about the importance of mental health and the complexities of human relationships.