Rosemary and Guy are incredulous at their good fortune and find comfort in a strange city among their new friends and neighbors, the Castevets. This well-to-do successful older couple takes the newcomers under their wing and become very involved with the Woodhouses' lives. Things seem to be perfect as Rosemary becomes pregnant and Guy's career takes off. As their spirited best friend, Guy's co-worker Julie, spends quality time with Rosemary in the city, she finds Rosemary's health worrying and cautions both of them that something isn't right. Soon there are other signs warning Rosemary to be careful.