陈源站在那里静静地看着，看着那只重伤的怪鸟几分钟后终于垂下脑袋咽了气，看着剩下的三只怪鸟有两只飞走了，只剩下最后那只还在已经死了的怪鸟旁边哀鸣，直至这只怪鸟十几分钟之后也终于恋恋不舍地悲鸣着飞走。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.
