Mr. Duncan’s son (Adam) died in an accident when he just passed his eighth-year birthday. Mr. and Mrs. Duncan were so heartbroken and desperate because Mrs. Duncan (Jessie) couldn’t bear a child anymore. Dr. Richard Wells is a genetic engineering expert who helps Jessie to reproduce Adam’s DNA and make a same new Adam. In order to keep the secret, Paul and Jessie moved to a place where no body knows them. The second Adam grew up, and he started to have many hallucinations about a boy called Zachary Clark when he just passed his eighth-year birthday. Adam’s personality suddenly became somber and offensive. Paul was very worried about his son, and he sought for solution everywhere he could. He found a secret of Dr. Richard that he had had a son called Zachary Clark long time ago.