Wrong Number is a suspense thriller where death prowls, unexpected and unstoppable. The play begins with the introduction of Mahi, her friend Aarti, Monty and Karan who is in love with Mahi. The group of four keeps making random phone calls to people till one day they meet Raj who turns the table on them and earns respect for himself and Mahi`s love too.
Mahi`s father is murdered for unknown reasons by an unknown person. One after another people around are being killed. Nobody knows who the killer is.