Vicky Lewis is a force to be reckoned with: not yet 30 and already Crew Manager in the London Fire Brigade, she's destined for great things. But when she enters a burning building to save a man's life and leaves it with catastrophic injuries, all that changes. She's shunted over to the Fire Investigation Unit, where she's forced to team up with cantankerous veteran Des Farmer, aka the Grouch. When Vicky stumbles across the Grouch's off-the-books investigation into the fiery deaths of a series of young, blonde women, she decides to join him in his search for the truth.