影片围绕哥本哈根地铁建筑工地展开,为工程写宣传文案的瑞伊深入隧道,在采访中途遭遇事故,和另外两名工人被困狭小的隧道钻头控制室,他们的命运将何去何从?Rie visits a tunnel-boring machine being used to construct the Copenhagen Metro. When an accident occurs, she must survive the claustrophobic conditions of an airlock with Ivo and Bharan whilst reconsidering their lives.