Gwendy first meets a man in a park. He calls her over and gives her a button box (a box with buttons that one can press, not buttons that might hold clothing together, which is what I’d originally imagined before opening the book).

The buttons, he explains, each represent a different area of the planet, and that they should not be pressed under any circumstances. There are two other buttons, a red one, which is supposed to signify whatever Gwendy wants, and a black button, which implies total annihilation worldwide. Why he gives this box to Gwendy is not really clear. He tells her she must protect it and keep it close. But it’s good to keep in mind that this is Randall Flagg we’re talking about here, and he’s generally a dick on most days, anyway. Maybe he just wants to torment some dumb kid. In any case, he gives her the box. Not only do these buttons exist on it, but there are also two levers. When you pull one of them, tiny pieces of magical chocolate fall out. The chocolate kills your hunger and increases your intelligence, somehow. The other level shoots out rare coins, because of course it does.

You know it's going to get weird after that because after all it was written by Stephen King. No one does weird and scary better.  

Psycho - directed by Alfred Hitchcock