Mid-day journalist Sonil Dedhia interviews the film Knock Knock Knock's director Sudhanshu Saria. Here are the excerpts from the interview. 

Tell us about the film
It's a psychological thriller, sort of a cat-and-mouse game between this Older Bengali man who builds crosswords and this young Nepali boy, this tattoo artist who interrupts his work one morning. And it sort of goes from there. The film follows their friendship; as our Dada is trying to figure out who this boy is and why he wants to be friends with him.