Dosh (2007)

Mumbai-based wealthy widower Vikram Chopra is shocked to get the news that his only son, Gaurav, has met with a sudden death. Police conclude that his death was a homicide, and assign Inspector Om to investigate this incident. Om will soon find out that nearly everyone in the Chopra family, including Vikram's adopted son, Vishant and his wife Priyanka; as well close family friends such as J.K. Mathur and Vijay Mehta, had a motive. He will also encounter deception, greed, lies, and treachery, as the killer(s) continue to elude him.