In the late summer of 1978, Delhi felt like any other bustling Indian city — ambitious, crowded, and seemingly safe for everyday families. But for Captain Madan Mohan Chopra and his wife Roma, one ordinary evening shattered that illusion forever. Their children, 16-year-old Geeta and 14-year-old Sanjay, stepped out of their Dhaula Kuan home to attend a youth programme at All India Radio. They never came back. What followed was not just a personal tragedy but a crime that shook the conscience of an entire nation.