The audio begins with the unmistakable sound of a metal door opening, the metallic clang echoing slightly. The noise is followed by the distinct clinking of a chain being moved, a sound that suggests security and restriction. The chain rattles against the cold, hard surface of the door, creating a rhythmic pattern. Suddenly, the door is shut, the bang resonating in the enclosed space. There's a finality to the sound, a sense of closure. The chain is once again moved, its sound piercing the silence that follows the door's closure.