Arjunan Saakshi 2011 one on netflix

Roy Mathew (Prithviraj), a young architect who has spent his entire life abroad, finally arrives in Cochin with dreams of starting a life afresh. But he soon realises that the city that he gets to live in is radically different from the one that he had seen in his dreams. By coincidence his individuality is misundertood for a witness to a sensational crime involving top brass of industrialists and political class.