The spirits of two siblings who were killed by an evil man seek to avenge themselves. While the woman possesses a young girl, her brother turns into a robot and together they wreak havoc on their foe.

Murugan is a diligent scooter mechanic in Madurai, whose life goes on smoothly until a rich schoolgirl named Aishwarya sets her eyes on him. The infatuation reaches dangerous levels when she coaxes Murugan to take her away from the clutches of her family, which has other plans about her future.