Darappan is assigned to help Vivek, a researcher, and tell him about the culture and life of the local tribes. Vivek gets deeply affected by the plight of the tribals and decides to help them.

A mafia leader tries to kill policeman Sivagiri, who took down his illegal businesses, with the help of a lookalike. Later, Sivagiri discovers that the leader is responsible for his father's death.

Mahesh is an educated young man whose father is an extremely orthodox person and a strong believer of the caste system. Kamakshi, his sister, bears a child from her lover and tries to hide the truth.

A scientist gets into trouble when he develops a formula that enables the soul to move out of a body and enter the person or animal present in close proximity.

Friends Shambu and Premkumar fall in love with the same girl, Shobha, and are unaware about it. Matters become more complex when another person also begins to woo her.

To protect her dignity, Nazima kills Mohan, who intended to assault her. Out of anxiety and fear, she conceals the matter from others. But she realizes that it is not easy.