In a South Korean emergency room a young family anxiously waited for help. Their 3 month old baby had been perfectly healthy but now his X-rays showed evidence that his lungs were literally solidifying and turning into rock. He was dying and there was nothing they could do to save him. They walked in a family of 3 - walked out a family of 2. Just a few days later the same family of 2 walked back in - and only 1 walked out alive. In the matter of a week 2 family members had died. But that’s not all - doctors around the nation noticed an alarming new killer on the streets. A new poison targeting children and pregnant women. Could they find the culprit before it was too late?