Working in confined spaces is characterized by a provisional basis, short working period, and high degree of hazard. As a result, accidents can easily happen if employers and workers lack hazard awareness concerning this type of work. In order to strengthen publicity effect and ensure that the hazard awareness can diffuse to the general public, Occupational Safety and Health Administration, Ministry of Labor, R.O.C. produces this film, which adopts a humorously scary approach to convey the risk of working in confined spaces. We hope that it will induce greater hazard awareness in persons who actually perform this work, and cause them to adopt necessary safety measures that will avoid similar accidents happening.