Engeyum Kadhal(2011)

Kamal, a young billionaire, doesn't believe in love; his philosophy is simple: No love, no commitments = no disappointments. He works hard for 11 months and takes a month's break from all the work related commitments. Cute violinist Kayalvizhi alias Kayal believes in true love and is highly fascinated with Indian culture. Kayal's father Rajasekhar runs a small detective agency in France and Kayal often reads her father's case files for interesting stories. One day, Rajasekhar gets a new client who wants to know about his girlfriend's mystery man. After a brief investigation, Rajasekhar finds that his client's girlfriend is dating Kamal. Sonu gets angry and decides to kill his girlfriend and Kamal.