Perhaps movies like Souryam are made to instil a sense of fear in you - a fear that the world isn't safe, and that it is coloured only black and white. It is a world in which evil has no limit, no remorse and no hope of ever turning a shade grey. Nothing of mortal origin can protect the innocent from this evil.
However, in a black-and-white universe, black exists only so you can see white in all its glory - and feel safe in all its brilliance and warmth. So perhaps movies like these are made so you keep looking forward to a six-foot-one-inch tall, smart and cheeky guy, who will look....