South Florida sleuth Helen Hawthorne gets a history lesson from her landlady Margery Flax. In the 1970s, while pushing papers in a dead-end job, Margery witnessed a battle of the blondes between vivacious Vicki and meticulous Minnie for a promotion that would take one of them to the top of the corporate ladder. But when their office politics turned dirty, the blondes got dangerous—leaving one of them dead and one of them a killer whose identity Margery has kept secret for more than forty years…