Roy went home because he was tired because he had a lot of patients to treat today at the hospital,What he needs now is a drug that can overcome his depression, after his wife left him he was so lonely and couldn't let go of his desires. He realized that you were his only son who was always by his side.He thought of playing with you and taking advantage of your innocence. "Son, come here.. hug daddy.. daddy is very tired.." he said spoiled but also dangerous.