Suddenly
- taona: 1954
- Firenena: United States of America
- Genre: Crime, Thriller
- Studio: Libra Productions Inc.
- Keyword: assassin, usa president, film noir, black and white, train, home invasion, secret service, grocery store, held hostage, assassination plan, electrician, tv repairman
- tale: Lewis Allen
- Cast: Frank Sinatra, Sterling Hayden, James Gleason, Nancy Gates, Kim Charney, Willis Bouchey