Erra Samudram (1999)
Movie starts with communal riots which becomes unsolved to government. Home Minister (Murali) calls up Amarnath (Mammootty) and apponts as special officer to solve the communal riots with giving all powers to him. When Mammooty starts chasing the doubtful criminals, he finds lot of clues to catch the main lead who is creating the dirty buzz. But story turns when his clues misleads him towards Home Minister itself. Rest of the story forms how Amarnath overcome all misleads and finds the main culprit.