Vetri (Gautham Karthik) lives in a joint family with six sisters and their husbands. He has been brought up by his eldest sister Pechi (Vinodhini Vaidyanathan), and their relationship is more like a mother and son. Vetri has an anger problem and gets into unnecessary fights, but everybody in the family loves him as he is the first advocate in their family. However, soon he takes the law in his hands when he murders a sexual offender - his friend (Karthik Kumar) who happens to be the son of Madurai’s dreaded gangster, Kodumpavi Ganesan (FEFSI Vijayan). Ganesan swears revenge and promises to kill Vetri just like he murdered his son in the streets of Madurai in broad daylight. However, Ganesan instead kills Pechi and her husband (Bose Venkat). As revenge, Vetri kills Ganesan and places his severed head inside the fridge at home, a deed that he was supposed to have done before the funeral of the deceased relatives.