Forshadowing ( Sorry, Right Number )

In this story, Sorry, Right Number, it has lots of forshadowing. Forshadowing is when the story tells you something or gives you a glimpse of the future of the story. In this story it has alot of forshadowing such as when the woman, Katie, answers the phone and it is some mysterious caller asking for help, and at the end she finds out it was really her on the phone. In which it creates a image of forshadowing