在宁静的海底，阳光透过水面，鱼儿在珊瑚间悠游，仿佛进入梦境。中野亜梨沙最火的一部

　　Two sisters go diving at a beautiful, remote location. One of the sisters is struck by a rock, leaving her trapped 28 meters below. With dangerously low levels of oxygen and cold temperatures, it is up to her sister to fight for her life.