All the POSSIBILITIES
There is a scientist that studies genetics with a gorilla. Kathy brought some bread for the scientist and she saw the gorilla and it was smart. She also wanted to be smart, so the scientist took a sample of her blood. Her friend William came with her the next time she went there. He wanted to get the job as the assistant of the scientist/professor. He did get the job. His genes were much better than the girls. The scientists made him smarter and now he looks different,(William). He looks human, but he has a larger head, because of his big brain. When the maid saw him, she thought about going in town and telling everyone about him. The man killed her for that thought. Her friends found that was very suspicious, because the maid said there was something strange going on. The scientist tried to stop William, when he went in town to hurt them. He just pushed him with his mind. He changed his mind and went back to Kathy and she wanted him to go back to the way he used to be. He should do that, but he wants to go in the future with his smartness. Kathy tricked him and went backwards and got his old self back.
This story cam with a mad scientist and sort of a mutant child. He changed into a different man both inside and out. And the scientist made him that way.