The two soot-black men MB and SA have been devastated by their night like dark skin. But a new hope lands when both men get the white skin which suddenly increases their IQ like the white Westerners. The man MB after getting a new skin and tall IQ thinks to enter the superstitious world of non-white countries where religion, not the science, rules the body and mind of the inhabitants. Religion becomes a business for MB to exploit the people's ignorance. Other character SA is an honest officer who represents the upright bureaucrats of non-white world where honesty is a taboo. He too like MB gets a new white skin, and starts research to find out the genetic reason why the non-white people never contributed in scientific invention and discovery.
MB and SA after their joint study find several common traits in the non-white world across three continents. These are greed, predominance of corruption, superstition, poor civic sense, blind faith, unscientific attitude, short-sightedness, lack of patriotism, violence and the terrorism. White skin is free from all these maladies or they've only a bit of those evils. They also find out that the democracy is a joke here. It's jewel of the white people which doesn't suit on the low IQ holding bodies. Dictatorship is the best tool for them they plead. Both want to divide the world between the white and non-white people. White people should rule the world and non-white to obey them. The two men think that the division of society is quintessence of social harmony, not utopian unity. Two races have different IQ, so the world should be divided into two.
Is their plan of two worlds, black and white, is possible? Will SA succeed to find out the genetic reason of low IQ in non-whites? ONCE I WAS BLACK MAN has the answer.