By Emmy Iyer(07 May 2011)
Vettaiyaadu Vilaiyaadu movie is about Raghavan (Kamal Haasan) who is an honest cop in Tamil Nadu. His wife Kayalvizhi (Kamalinee Mukherjee) who dies in a violent incident. Arokiyaraj (Prakash Raj) who is his colleague. Raghavan is deputized to investigate Arokiya Raj's daughter Rani's murder in some remote village in Tamil Nadu. Arokiya Raj shifts his base to New York after his daughter's murder.
After 9 months, Raghavan receives message about the gruesome murder of Arokiya Raj and his wife. He proceeds to New York to conduct preliminary investigations, with the help of NYPD detective Anderson. There, he saves Aradhana Arun (Jyothika) from committing suicide due to problems with her estranged husband.
He finds a pattern in those murders and finds resemblance to Arokiyaraj's daughter's murder in India. Based on these clues, he tracks down two Indian medical students studying in New York. The duo escape to India after severely injuring Raghavan and killing Anderson.
Raghavan, who reveals that his wife was 5 months pregnant when she died, returns to India, and Aradhana, who reveals that she's a single-mother, follows him. She rejects Raghavan's offer of marriage. In India, culprits chase Raghavan and commit a series of murders, including those of Raghavan's driver and security guards.