Don't Hang Up!
- Ano: 1974
- País: United States of America
- Xénero: Horror
- Estudo: Jefferson Productions
- Palabra clave: stalker, murder, maniac, grandmother, granddaughter
- Director: S.F. Brownrigg
- Reparto: Susan Bracken, Larry O'Dwyer, Gene Ross, James N. Harrell, Hugh Feagin, Annabelle Weenick