Leo Kaalpo, our hero, lives in a seaside place in Alappuzha, and he runs this cafe with his father. He has a gang of friends, and the plan of Kaalpo is to marry some foreigner and settle in some European country. That plan suddenly changed when a new girl named Thumbi came to the neighborhood, and Kaalpo fell for her. Thumbi, who has an abusive father, wasn’t really confident about the relationship. The ups and downs in that relationship and where it takes them is what we see in Qalb.