Rita Charles, a single mother of a preteen son, hates her job and is resentful of her boss. She can't quit, however, because she is just scraping by and can't rely on her ex for child support. Adding to the complications is her recent romantic involvement with a co-worker, which she is trying to hide from her employer. If she didn't have enough problems, Rita decides to play a practical joke on her boss. But the joke goes terribly wrong. When violent crimes become rampant in her town, she fears hat she will become implicated.