A young woman tries to find her origins after having been abandoned as an infant at a cemetery wrapped in a cloth with satanic symbols, but as she get

一辆油罐车在隧道内发生车祸，回家过圣诞的路人被困于隧道大火，山上暴风雪肆虐，急救人员奋力赶往事故隧道，展开救援行动

挪威是个拥有大量公路隧道的国家，但是由于隧道建设时缺少应急规划和救灾避难设施，隧道内的火灾往往是致命的。