When Psycho Andrea McBride is released from a mental institute she gets a job at a nanny temping agency in Los Angeles. She lives in a perpetual world of romance novels and when an application for...

When Psycho Andrea McBride is released from a mental institute she gets a job at a nanny temping agency in Los Angeles. She lives in a perpetual world of romance novels and when an application for a position as a babysitter for neurosurgeon James Lewis comes. She applies for the job using the name and references of another nanny, Nikki Harcourt. Determined to get the job, she kills a rival applicant. And then once in the house, she does everything possible to make James hers, including killing off other potential romantic rivals and those from her past who threaten to expose her identity.