Narcosis is a fictional supervillain from DC and an enemy of Batman.
The child that would grow up to become the villain Narcosis was only 5 years old when he was taken into care after his father was jailed and his alcoholic mother was taken into hospital. After only a week in care the boy had an accident pulling a scolding hot pan of food onto to his face. The boy then spent 10 years in hospital having reconstructive surgery, plagued by nightmares of the incident that had destroyed his face. Swearing revenge against the city he blamed for his condition he invented a dream gas and became Narcosis.