As the story unfolds, Siddharth's past is revealed through a series of flashbacks. He was once a victim of a heinous crime, which led to his mental trauma. With Dr. Ananya's help, Siddharth tries to overcome his phobia and lead a normal life.

The movie revolves around Siddharth (Vikram), a successful event planner who leads a normal life. However, he has a dark past and suffers from multiple personalities. He meets Dr. Ananya (Priyanka Chopra), a psychiatrist who tries to uncover the truth behind Siddharth's mysterious past.

Anniyan is a 2005 Tamil psychological thriller film directed by Shankar. The film stars Chiyaan Vikram as Siddharth, a young man who suffers from dissociative identity disorder. Priyanka Chopra plays the role of a psychiatrist, Dr. Ananya, who tries to help Siddharth recover from his traumatic past.

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