Gurleen lost her twin sister Harveen when she was 12 in an accident, or so they believed. The case had been closed, everyone seemed to move on except for Gurleen. So what will she do when she starts receiving letters ten years later from an unknown person, Why killer has even contacted her in the first place? who reveals himself to be her sister's killer? How will she find the mystery killer? And above all that, what does he want now for it has been almost ten years since her sister's death?