Alguien esta en la puerta
- Jahr: 1970
- Land: Mexico
- Genre: Thriller
- Studio: Salto de Fe Films, Mr. Blue
- Stichwort: adultery, love triangle, female friendship, sexual repression, sexual desire, high school reunion, classmates, affair
- Direktor: Adrián García Bogliano
- Besetzung: Alexis Cárdenas, Samantha Coronel, Mauro Sánchez Navarro, Giancarlo Ruiz