Thrilled about getting admission to the College in the coming months, Harris’s life was a smooth sail; Until he had to help the daughter of his dad's friend, reluctantly. Hareem, a Muslim girl having Indian ancestry, who hates boys in general, was compelled to get a crash course from the guy her dad found. Thus begins the journey of patience, sentiments, and decisions of their lives. Would they able to climb the mountain of their ego? Would they dare to cross the line of their faiths? Will they succeed in saving their relationship? It will all depend on the strongest vow they had made to themselves. "The Strongest Vow" is a star-crossed interfaith love story which leaves a throbbing share of love to one's entire life.