Elizabeth is a dedicated, workaholic doctor who is much too busy to have a life. One night, she gets into a terrible car accident and dies. She becomes a spirit stuck between heaven and earth. She doesn't realize that she is dead and thinks nothing has happened. That is until she meets David, a lonely architect, who has rented her old apartment. David thinks he is going crazy when he sees Elizabeth's spirit and tries every way he can think of to get rid of her, but she just won't go away. Although the two are complete opposites, they somehow manage to form a relationship.