Plot SummaryTanya wants her best friend Rohan to become her life partner. But Rohan already has a girlfriend named Mehak Rai. One day at a party, Mehak insults Tanya in front of everyone. This leads to a big fight between Tanya and Mehak. Rohan also believes that Tanya was wrong, which hurts her even more. Feeling angry and embarrassed, Tanya wants to take revenge. She finds a strange app called Knock Knock. The app says you can curse the person you hate the most. Out of anger, Tanya uses the app to curse Mehak and wishes for her to die. Shockingly, someone really kills Mehak. After that, Tanya’s life becomes very dangerous. A scary game of blackmail and violence begins. Her friends and family are also in danger. Tanya must find out who the real Knock Knock Killer is before something terrible happens to her or her loved ones. |