Throughout the story, people keep asking "Where's David?" At one point, Brandon casually answers he's not his keeper. Now think, who first said such a phrase? Cain, the first murderer.
Why does Rupert have a sudden change of heart when he learns about the murder Phillip and Brandon committed? Why does he quickly lose faith in his philosophy? Well, it's one thing when he's talking about killing complete strangers he's never met, strangers like waiters and valets. But it must've hit him too close to home when one of those victims would be one of his students, David.
Fridge Horror
How will Kenneth and Janet react when they learn that their romance was orchestrated all along? And by David's murderer no less?
