For the past three years, Rachel Parsons (JOSIE DAVIS) has been the perfect assistant. She works long hours, takes care of everything her boss David Wescott (CHRIS POTTER) needs, and never makes a mistake. Why? Because she’s secretly in love with him.

Having lost her own parents to a car accident as a young child, Rachel has always dreamed of finding the perfect man and raising the perfect family. Her idealized fantasy has come to life in the form of her boss David, the President of a mid-level P.R. firm in Philadelphia. Unfortunately, David already has a family—a beautiful wife named Carol, (JENNIFER MARCIL), and an adorable daughter, ISABELLE, 6. And since David will never give up his wife, there’s little that Rachel can do besides secretly pine for him.

But Rachel receives a stroke of luck when Carol is rushed to the hospital, diagnosed with bacterial meningitis—and ultimately slips into a coma. Rachel uses the opportunity to wedge her way further into David’s life—offering to babysit for Isabelle, make him dinner, handle things at the office. It’s no surprise that when Carol’s condition improves, Rachel is reluctant to give up her new place in David’s life. Rachel decides to seize the chance to murder Carol while she’s still unconscious and rid her of David’s life forever.

When David’s business take a downturn, and it appears that a big account may fall to a rival company, Rachel takes it upon herself to dig up dirt on the other company’s owner, Grady (IAN WATSON), and blackmail him into withdrawing his bid. Once the account is confirmed, David and his Vice-President, the attractive Judith (RACHEL HUNTER)] are invited to New York to meet with the big-whigs at their client’s headquarters. Rachel decides to go even though she wasn’t invited. While there Judith becomes mysteriously ill and Rachel heroically steps in to save the day.

In New York, Rachel makes her move, kissing David during a moment she misconstrues as romantic, and he is forced to tell her that he has no interest in her. Rejected, Rachel decides she must work harder to win David’s affections, but back at the office, things begin to unravel very quickly. Word that Rachel was researching Grady right before the blackmail and was seen tampering with Judith’s coffee before she became ill has worked its way back to David. David realizes that Rachel’s obsession with him may have led her to this behavior and decides the best thing for all involved is to let her go.

Rachel doesn’t take the news of being stricken from David’s life very well. She’s hurt, betrayed, and slowly beginning to lose her grip on reality. All sense of reason completely gone, Rachel decides that if she can’t have David, no one can. And if he couldn’t see how much she deserved to be loved by him, he doesn’t deserve to live anyway. Armed with a gun, Rachel decides to attend a company dinner—uninvited of course—will she will make her final stand and everyone who stood in the way of her perfect fantasy family… will pay the ultimate price.