On a dark night in Calcutta in the 1930's, a young English lieutenant fights to save the lives of two children from an unthinkable threat. In spite of the unbearable rain of the monsoon, the British youth manages to save them, but not without losing his own life. Years later, when the two children, Ben and Sheere, are about to celebrate their sixteenth birthday, the threat reappears in their lives and this time they will not escape so easily.