Mridul and Sayan who are father and son, but they are the complete opposites of each other. Mridul is an honest, quiet clerk in an office and his son is a complete Indian version of ‘Dennis The Menace’ who is a hopeless kid in every which way that his principle gives him 7 days to mend his ways. One day Sayan prays to his late mother to help him change places with his father so that he can show the world of what he is capable. That happens and things suddenly change. Sayan becomes an excellent student and is completely changed. Mridul goes to office and becomes a little kid completely shedding his normal timid self which even shocks his boss. One day Sayan is kidnapped by Mridul’s boss and by Mashima’s nephew(an old lady very close to Mridul). Sayan’s gang of friends and Mridul start taking control of things in their hand, but midway the clock strikes midnight(7 days had passed) and Sayan and Mridul become themselves. They become helpless, but when Sayan becomes injured, Mridul though injured himself rises to the occasion and starts beating up the goons. Both father and son decide to stay as they are, but decide to change themselves just a little bit.