A sub-inspector's eight year-old son goes missing. A researcher in Sweden is disappeared after seven months. Are they connected?

It is Christmas Day in Calcutta and David Dawson is off to celebrate it with his sweetheart, Nandini Shom. The meeting does not go well as Nandini wants him to start working so that they can get married and start a family, while David wants a career as a musician. She tells him that she will never see him again. Despondent, he returns to his rented apartment and is chided by his landlady, Lillian, who threatens to have him evicted as he has been delinquent in paying his rent for over a year...