- HD 1080
- Runtime: 94m.
- Status: Released
0
- Languages: en
- Country: United States of America
- Director: John A. Bushelman
- Stars: John Ireland, Beverly Bain, Cliff Fields, John Hart, Elena Verdugo
- keywords: exploitation
- Production_studio: Screen Group
- Slogan: THE HORROR of Half Man, Half Woman, ALL KILLER!
- providers: Amazon Prime Video, fuboTV, Epix Amazon Channel, MGM Plus Roku Premium Channel, MGM Plus, FlixFling, Amazon Prime Video with Ads
- The Day of the Nightmare is featured in the top rankings of 1965
- #38 in Top Thriller Movies of 1965
- #21 in Top Mystery Movies of 1965
- #25 in Top Horror Movies of 1965
A young wife's marriage begins to crumble after she's attacked by a knife-wielding woman whom the police believed was already dead.