Breathless

The Newly Married Couple, Tung and Nam, are going to meet the arrival of new life. However, the disaster arrive first. The weird fog made the oxygen content in air become impossible to survive with. Both of them and the baby in the belly are surviving in a tiny place and breathing oxygen from the oxygen cylinder. Should they give birth to the baby? If there is somewhere over the west, where rumor said there is oxygen, whether they should stay or go?