The film begins with police arriving at Sivanandi's (Sathyaraj) house questioning him about killing his daughter Lathapandi (Sri Divya) because she ran away with the guy she loved. Bosepandi (Sivakarthikeyan) and Kodi (Soori (actor)) are two friends who are the leaders of a group called Varuthapadadha Valibar Sangam. One day, Bosepandi falls in love with Kalyani (Bindu Madhavi) who is a teacher at a school. Bosepandi writes a love letter for her but wants someone to go give it to her so that's when he finds Lathapandi. Lathapandi gives the letter to her teacher and tricks Bosepandi into believing many things.