Thimmarusu is a legal crime thriller. A lawyer's hunt for the truth makes him reopen a murder case. A cab driver was murdered in the past and an innocent guy was framed. The case was closed in a secret manner. How the honest lawyer, played by Satyadev Kancharana, fights for justice forms the crux of the legal thriller 'Thimmarusu'

The film revolves around the story of an ordinary rickshaw driver in Bihar who aspires and dreams of providing a maximum possible quality education to his son by making arrangements for him to study at a private English medium school.