Dr. Roy Jamnadas, who is working on a theory based on nature vs. nurture, separates two sets of identical twins he finds at the doorstep of the orphanage he runs. He gives them up for adoption to two different families in two different cities. A few years later, when one set of twins decides to visit the city where the other set of twins run a circus, a comedy of errors full of confusion and misunderstanding ensues. They come face to face in the end for the big reveal.