Weird strict dad

At night, someone tried to break into the window where the father of a small child was sleeping at the time, and when he tried to break in, he accidentally dropped a flask with a black liquid and it broke on the father. The man quickly ran away, and the father screamed like a victim, the baby heard this but did not pay attention to it and went back to sleep. The father sometimes began to lose control of himself, and then more and more, and one of his hands turned black, and then the other hand. If the father looked into someone's face, he had red pupils, and if he looks at someone, he WILL KILL THEM... that's why he walks with his eyes closed and he can also attack his son...