Smart and capable Joanna Mills (Sarah Michelle Gellar) is the sales manager of a transportation company in St. Louis. Her career is booming and her future is bright. However, she has been troubled by nightmares recently. In her dreams, she always witnesses a brutal murder, which makes her tortured and exhausted. One day, Joanna came to a strange town to find out the truth, where she met the single Terry Star (Peter O'Brien). Since then, everything has taken a turn for the better. Nightmares and illusions have gradually increased, and the clues to the murder in the dream have gradually become clear. As she gets closer and closer to the truth and the murderer, danger is quietly approaching...