Due to climate change, there are food shortages all over the world, but Thailand has solved the problem. A local businessman produces insect bars and has high hopes for a new premium fish product. But a taster of the fillets has a seizure and the victim is brought to the hospital, where he mutates into a bloodthirsty monster. A zombie epidemic begins, the building is cordoned off, and a guy with close combat skills tries to find his wife, who works there as a doctor, in this chaos.