Ring Road intercuts between two lives - Suma's and that of Khan - the investigating officer. Suma's story attempts to get into the psyche of the 'killer' and reconstruct the incidents the way they could have unraveled but remains mostly a work of fiction inspired by a real event. Khan's story is how the murder case was solved. Although the movie intercuts between the two stories and two timelines they converge at one point indicating how one single event can affect lives more than one. The movie is also a conversation about the age old Indian tradition of arranged marriage.