Scales Revise

Scales Revise is a pretty gory story about a vaccine which mutated humans into emotionless, scaled, grey eyed monsters, called Demons.
They kill normal humans and have the urge to eat them as  well. (Zombie style but with intelligence XD)
Some of them gain selected  emotions back after 10 years in a contained city, as well as colored  eyes and mutated super powers.
The Story is about the Human Ovan, which was sent to the contained city to test an Antiserum for the Demon desease. Instead of getting killed in the beginning he starts to learn the Demons have still something Humanlike inside them and they are evolving. A journey begings to find a cure for it to make them human again.