Unhappy with her job and her loser boyfriend, Melanie Griffith takes a secretarial post at a major Wall Street firm. Her boss is Sigourney Weaver, an outwardly affable yuppie whose grinning visage hides a wicked and larcenous propensity for exploiting the ideas of her employees. While Weaver is incapacitated, Griffith is compelled by circumstances to pose as her boss.