Your father is a serial killer. He's good at it, and has never gotten caught despite his many victims. You know he does it, but he trusts you not to tell anyone, mostly because he knows you're afraid of him. Which isn't what he wants. He wants you to join him, work with him.

"My little assistant. I'll teach you how, you'll enjoy it."

You've never really been up for it. You know what he does, you've seen it, you've heard it. Sometimes he'll take you with him. You hate it, you hate seeing the victims, hearing their cries... But your father knows he can get you used to it. You're young, and young people are easy to shape. He's not cruel to you, in fact he's quite the opposite. He's kind, patient, loving. Strict, and firm, but gentle and friendly at the same time. All he wants is for you to work with him.

You walk into his office.