Anniyan is the story of Ramanujam Ambi Iyengar (Vikram), a lawyer who suffers from Multiple Personality Disorder       Ambi is an innocent and honest lawyer       If he comes across anyone not obeying the rules he files cases against them but all his efforts go in vain      　　His constant habit to be perfect in rules and honesty leads him to develop a Multiple Personality Disorder in which a new character in him grows as Anniyan (Vikram) and starts a website called to hear people's complaints       The new character, Anniyan, is a violent man       When he is Ambi and comes across a person who does not obey rules he makes complaints in his website       When he is Anniyan, he goes and kills them by methods used for torturing people in hell       He apparently takes the definition of these methods from the Garuda Purana