本劇描述居住在台灣的外籍移工故事。越南男人黎文誠為了家鄉的父母妻子,來到台灣、登上了漁船,成了台灣的漁工,狹仄的船艙裡頭還擠著另外兩個同樣來自越南的漁工阿海、昌文。文誠和阿海臭味相投,成為好友,也是受到排擠欺負時,互吐苦水的難兄難弟。。A young newlywed couple find themselves trapped in a network of underground caves. With her husband injured, the new bride is forced to find her way back to the surface in order to save his life. In the process, they discover a terrifying truth about the "underneath", they are not alone. Something evil is hunting them.。