Wajahh: A Reason to Kill (2004)

After Trishna marries her sweetheart, Dr. Aditya Bhargava, she finds out that he used to love Ishita Singhania, the only daughter of a multi-millionaire. She also finds out that her marriage to Aditya resulted in a major trauma for Ishita, who had to be institutionalized for sometime. Now Ishita has recovered, and someone is trying to kill Trishna, and the problem is that no one is willing to believe her.