The Derby fire, in which six children died, was an attack on a family that shocked the country. The truth behind it is equally appalling. The father - apparently a hero who'd fought to save his kids from the flames - was convicted of starting the fire himself along with his wife Mairead and friend Paul Mosley. Mick Philpott achieved notoriety for sharing his three bedroom home with two women and 11 children. Not everyone was surprised when within weeks of the tragic blaze he'd gone from hero to suspect. With exclusive access to friends and relatives plus interviews with investigators closest to the case, Panorama reveals how Philpott's home life was imploding in the months before the fire with rows, suicide bids and death threats and asks were warnings missed?