Thani Oruvan revolves around the life of Dr. Siddharth (played by Arvind Swamy), a well-respected psychiatrist in Chennai. His life takes a dramatic turn with the arrival of a mysterious patient, Mythili (played by Nayanthara), who seems to be suffering from a rare psychological disorder. As the story unfolds, it becomes clear that Siddharth's life is about to get entangled in a cat-and-mouse game with Mythili, pushing him to the limits of his professional and personal life.
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As of May 2, 2026, the film is available through the following official services:
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