There are some films made in 1960 that, despite decades having passed, seem to trap the viewer inside that cold concrete cell. This work, Jacques Becker's latest film, offers exactly such an experience. The director passed away only a few months after completing this film, and this information adds a special weight to every scene reflected on the screen. Set in Fresnes Prison in France, the story tells about the trust that five prisoners feel for each other, the tunnel they grope their way through, and the crazy hope that leads to freedom. But what sets Becker apart from other escape films is that it builds tension from within, rather than from outside. The pressure here comes not from the guards; it stems from the question of how much people can trust each other. The camera frames the cell walls in a way that makes them feel almost physical. The black and white image imbues every shadow and every bright corner with meaning. One of the most striking aspects of the film is that it was inspired by a real prison escape attempt. In fact, Jean Keraudy, one of the real heroes of this initiative, portrays his own character in the film. This detail lends documentary credibility to every detail transferred to the big screen. The tools made with toothbrushes, the waits planned by the hour, the sounds of concrete breaking—none of these feel fake to the viewer. Acting also aligns with this understanding of realism. The preference for largely inexperienced or little-known players instead of a squad of big names adds an extraordinary naturalness to the narrative. Michel Constantin and the others are not heroes; they appear before us as ordinary, tired, hopeful people. The central issue of the film is this: How enduring can a solidarity formed out of survival instinct be? Do people remain loyal to each other only as long as their interests align? Becker never asks these questions directly, but every scene carries the weight of these questions. That's why the ending lingers within one for a long time; neither happy nor unhappy, just real.