Robin Perry's life is finally on track with her dream job and a promising relationship with Ben Martin, even if his two spoiled children, Amber and Jaden, hate her. But things take a downhill turn when Gloria Reyes, an acquaintance of Ben's, asks her to admit her young son to a cancer study meant for adults and Robin, heartbroken, must turn her down. But Gloria won't take no for an answer and begins an insidious crusade to force the issue.

Amber Martin hates living with her crazy mother since her parents' divorce, but she can hardly live with her dad, who's too busy with "Miss Perfect" these days. When Amber runs into her mother's friend Gloria, she's glad to finally meet an adult who seems to be on her side. But as Amber becomes friends with Gloria's sickly son, Alex, she begins to think Gloria is not as nice as she first thought, and Alex may be in trouble.

As Gloria's threatening behavior escalates, Robin must protect the children while finding a way to save her career and her relationship with Ben. But Gloria always manages to stay one step ahead. When a secret comes to light, Robin discovers the stakes are even higher than she imagined.