Raja Ranguski is a 2018 Tamil thriller movie starring Shirish Sharavanan, Chandini Tamilarasan and Anupama Kumar. The story revolves around the police constable Raja, who makes prank calls to Ranguski, an upcoming writer, and eventually makes her fall in love with him. Situation however turns interesting when Raja starts to receive prank calls from an unknown person who threatens to kill Ranguski. While Raja saves Ranguski, he finds her neighbour Maria dead. The turn of events make Raja get arrested for the crime. Who killed Maria? Can Raja prove his innocence and find out the real killer?