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.
Aishwarya, an air hostess, wants to marry a millionaire, but mistakes Karthik, a gym trainer, for a rich guy and woos him. She calls off the romance when she discovers that he isn't well off, but Karthik will not let her leave that easily.
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.
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.
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.
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.
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.
Nandha returns after serving his term for killing his father. Although he killed him to save his mother, she does not forgive him. He is then taken in by Periyavar, who shelters Sri Lankan refugees.
Vasu is a tough street crook who lives at a movie theater. One day while transporting the reels of a new film, he clashes with a music student Mohana. Mohana is the daughter of the Police Commissioner, who Tulsidas an ex-gang leader released from jail has an old grudge against. He tells Vasu to kidnap Mohana for two days in order to ruin the family's honor. While being held captive by Vasu, Mohana falls in love with him after hearing him sing. Vasu rejects her love, but on learning of it, Tulsidas pays him to pretend to be in love with her. By the time Tulsidas learns that his enmity with the police commissioner is false and tells Vasu to stay away from Mohana it is too late, Vasu's love has become real.
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.