It's a case with no clear answers. But that's not stopping journalists from all over the world to try and get behind the mess and myths spun around the double homicide case of Aarushi Talwar 13, and the Talwars' domestic help, Hemraj Banjade, who were found dead at the Talwars' Noida residence in May 2008. Aarushi's dentist parents, Nupur and Rajesh, walked free from Dasna prison after the Allahabad High Court acquitted them on October 12.

The makers of The Talwars: Behind Closed Doors, Star World's first investigative crime documentary, produced in association with HBO Asia, which premiers tonight at 10 pm, claim to once again put all the facts out, without "rebroadcast sensational allegations". In an email interview, BAFTA-winning documentary filmmaker and the executive producer of the four-part series, Sarah MacDonald tells us why her opinion of India changed by the time they were done shooting. Edited excerpts from the interview.