Woh Phir Aayegi is a horror mystery drama, inspired by the 1978 Malayalam film Lisa. The movie revolves around a happily married couple - Raju (Rajesh Khanna) and Aarthi (Farha Naaz). Their happiness doesn’t stay for too long, as Aarthi gets possessed by the evil spirit of Asha (Moon Moon Sen). Asha was brutally killed and now she has returned to exact vengeance from her killers. To complete her mission, she uses Aarthi as a medium. Will Raju be able to save his wife from this evil spirit?