Pauline Mitchell is a successful business woman, but when she starts misplacing things, loses track of time and doesn't recognize her husband, Aaron; Pauline fears that she has inherited Alzheimer's, the disease that killed her mother. However, she discovers that her husband and her secretary have conspired to make her think she's losing her mind so that they can take control of her company. Pauline must fight back, desperate to prove her sanity to the police, her doctor - even herself.