Who Killed Ratna’s Family?

Ratna, a courageous blogger and a house wife's life turns upside down, when she gets killed along with her son, Sanju. While her husband Amar is left injured, Ratna's daughter Shelly is missing. The Police starts their investigation on finding Shelly, who may be the only one to lead them to the killer. Will Police be able to find Shelly and nab Ratna's killer?