A happily married man faces an emotional conflict, when his past lover comes back into his life.

Saravana falls in love with his best friend Krishna's sister, Sadhana. During the fight with rival thugs, he manages to save Sadhana, who watches her family perish before her eyes.

Creepy happenings in an abandoned mansion are attributed to the ghost of an ancient courtesan, back for revenge.

When Mythili meets Madhan, she's at once attracted towards and terrified of him since he looks exactly like the serial killer from her nightmares.

Thirumalai, a mechanic, falls in love with Sweta. However, her father, the owner of a TV channel, is unhappy with their relationship. He takes Arasu's help to create differences between the couple.

Tagore, a professor, joins hands with his former students and makes a group called the ACF whose only motive is to bring corrupt officials to justice and protect civilians from their influence.

Two families stay in identical bungalows, adjacent to each other, tracing their friendship to over forty years. Their respective progenies Chinna and Chella (Ajith and Jyotika) are childhood buddies, their easy camaraderie and strong bonding carried over to their adult years.

Fate keeps bringing Siddhu and Madhu together, but they only realize the true extent of their feelings when they help unite their mutual friends.