This fast-paced action drama delves into the life of Black a fearless man of extremely dark complexion, who is hefty in size and has unusual physical prowess. He is a simpleton who takes delight in food and in the company of children. He is obedient to the rich Tharakan, whose commands he dutifully carries out. He also has a love for Tharakan's daughter Blessy. He is loved by all around him.
Meenakshi, who comes to that village, which comprises mostly of fisher folk, is stunned at seeing Black. He reminds her of Ramesh, her lover and the City Police Commissioner of Mumbai, who though fair in complexion, resembled Black to the core. She watches Black closely and even films him on her camera. And when she notices the scar on Black's leg, she begins to have serious doubts.
Meenakshi, who had come to do research under the learned physician Moosad, seeks his help in the matter. Moosad consents to help her and asks her to bring Black to him. She succeeds in bringing Black to Moosad, who does certain treatments on him and states that even if Black is Ramesh, he cannot effect any kind of transformation in him. Things however, are not destined to end there. From here the story takes off.