This movie is at least 50 years old. A woman was receiving threatening phone calls but as no one else ever heard them everyone suspected that she was making it up. Someone attempted to push her in front of a train. She asked her friend Peggy to tell her husband that she had also heard the calls but it turned out that the phone was out of order  so she was caught out in the lie. As it turns out her husband was trying to drive her mad and the friend Peggy was also implicated.