Siva comes to Madras from a small Tamil Nadu town to study. He instantly falls in love with elusive stranger Priya who resists his charms quite persistently. Madhavan later discovers that romancing Priya can be a dangerous hobby.
Two girls, Catherine and Aishwarya, meet on a flight and become friends. They share stories about their respective boyfriends, and Catherine is shocked to find that the man she is dating is a lookalike of Aishwarya's boyfriend. Even more shocking is the fact that when she reaches home, she finds out that her boyfriend has died in a car crash. Catherine decides to investigate the lookalike boyfriend and uncovers a thrilling mystery.
Padmanabhan master and his wife are waiting for Unni, their only son who is missing for many years. 10 year old Unni got lost in the crowd during a temple festival where he was along with his neighbour Panikkar, popularly known as Poorappanikkar. Panikkar too did not return since he decided to return only after finding Unni. Ammu is Panikkar's daughter who also believes, like master and his wife, that her father will return one day with Unni. The master finds Unni and brings him back to the Village. The villagers realize that Unni is abnormal and is mentally challenged. He behaves like a small boy and creates all sorts of trouble for the villagers and his parents.
Satyapratapan and Kuruvila are chronic bachelors. SP's sister Sandhya lives as a paying guest in their neighbourhood. Problems begin when Mukesh and Harishree Ashokan join Mammootty and Rambha joins Sandhya.
Venkat and Sailaja meet on a train and fall in love. But Sailaja's father disapproves of their relationship and decides to marry her off to Bhadranna, a ruthless landlord, who is obsessed with her.
Prabhu, a college student, falls in love with Shruthi, a governor's daughter. On knowing about their love affair, her father imprisons Prabhu and forbids him to meet Shruthi.
A don sends three criminals to recover a treasure buried by his grandfather in a village. A fourth criminal joins the trio en route, and they decide to hoodwink the don and share the treasure between themselves.
Naanu, who always speaks the truth, is married to Swathi. However, he is soon pursued by Rathi and is forced to accept her love but finds it difficult to let go of his obsession with Keerthi.
Karthik works in a software company. He falls in love at first sight with a girl Sruthi who attends his friend’s wedding. He gets hold of the phone number of the girl and while noting it down he makes a mistake. And he ends up calling another girl. Meanwhile Sruthi falls in love with Karthik’s colleague Madhu. The rest of the story is all about comedy of errors and how Karthik finds about his true love.
Kutty, a kind young man, falls in love with Geeta, but she does not reciprocate his love. He continues to love her even after learning that she is in love with Arjun, her college-mate.
Karthik, a carefree management graduate, abstains from taking up a job. One day, he, along with his close friends, decides to conduct a straw poll by dating three women and then choosing the best one.
Sankara Shastri is a devout and famous classical singer who finds a fan in Tulasi, a prostitute's daughter. She wants to devote herself to his service, but her mother wants her to become a prostitute.
Anna Thandavam, a big shot who arranges for contract killers, plans to murder Sivakkozhundhu, a cop. His plan goes bust after Vasu, a heroic young man, rescues the ADSP. Meanwhile, Thandavam also gets into problems with Vasu's family...
Jeeva is the story about an ardent cricket fan and his dream to play international matches. How he manages to balance his love life and achieve his cricketing dreams forms the plot of the movie.
Menon runs into his former wife Grace, who is married to a bedridden Mathew and loves him immensely. The movie revolves around their crossing and emotes the meaning of love and its various forms.