Linda Hanson (Sandra Bullock) has a beautiful house, a loving husband and two adorable daughters. Her life is perfect, until the day she gets the devastating news that her husband Jim (Julian McMahon) has died in a car accident. When she wakes up the next morning to find him alive and well, she assumes it was all a dream. Or was it? Suddenly, her perfect life is turned upside down as she begins a desperate scramble to save her family and uncover the truth. Racing against time and fate, Linda will stop at nothing to discover the true meanings of reality and destiny.