Thunivu is a mystery thriller movie that begins with a bank robbery, which leads to a sense of revenge against the government and the police. They threaten the government and police that if they let them go out without any trouble, they will not do any harm to the hostages over there. If they make any trouble, they will kill all the hostages. Some of the gang members stay outside to support them as they run away.—Baapofmovies.com