Don't Ever Open That Door (Spanish:No abras nunca esa puerta) is a 1952 Argentine thriller film of the classical era directed by Carlos Hugo Christensen and starring Ángel Magana, Roberto Escalada and Norma Giménez.

It was included in the 2022 list of The 100 Greatest Films of Argentine Cinema at number 45, a poll organized by the specialized magazines La vida útil, Taipei and La tierra quema, which was presented at the Mar del Plata International Film Festival.

The police announce this robbery on the radio, noting that the criminal whistles while robbing and murdering.

At night, as the thugs sleep, she goes through the house removing keys and stealing their guns from their bedsides in a long, suspenseful sequence.

She has her young niece remove all the fuses from the fuse-box to make it dark in the house, and sends her to get help.

In leaving by car, she rouses one of the thugs who wakes the son, and the criminals go to the top of the stairs.

One man falls to the landing below, dead, the other comes down the stairs to the mother while whistling and whispers, "I'll follow the good path."