Something Something… Unakkum Enakkum

The film opens in a jail, where a prisoner named Muthupandi (Prabhu) is questioned by a police officer about his past and answers without hesitation. He is a hardworking, self-made man who raised his younger sister Kavitha (Trisha Krishnan) alone after their mother died. Director Mohan Raja sets the story in motion when Kavitha leaves home for a friend's wedding, the first time she has been apart from the brother who has given her everything.