Dr. Rohini Pranab (Shobana), a doctor who runs an NGO and a shelter home for destitute girls, is targeted by human-traffickers. Her shelter home is attacked and all the children are taken. Naveen (Dhyan Sreenivasan) finds her sister kidnapped right in front of his eyes by the same gang.

An old communist returns to Greece after 32 years in the Soviet Union. However, things aren’t the way he had hoped for.

A psychologist with a keen interest in criminology gets entangled in a tough serial killer case which the police find hard to crack.

Dr. Vasi invents a super-powered robot, Chitti, in his own image. The scientific body, AIRD, that must approve the robot, declines it based on its not having emotions and the ability to make rational judgment. A sudden flash of lightning evokes emotions in the robot, and Chitti is seemingly ready for integration into the human world. Then, Chitti falls in love with Dr. Vasi’s fiancée Sana and turns on his creator.