In Alafair Burke’s new thriller, “The Note,” three friends are vacationing together in the Hamptons when they have an unpleasant run-in with a couple of strangers and decide to exact drunken, petty revenge. But the prank they pull — a note reading “He’s cheating on you” — snowballs, eventually embroiling them in a missing-persons investigation and forcing each woman to wonder what dark secrets her friends are hiding.

Burke joins host Gilbert Cruz and talks about how she came up with the idea for “The Note,” and how she goes about writing her books in general.

“I always have a few ideas, just, like the setup in my head,” she says. “And then I also have characters in my head. They’re not aligned together initially. I might just be thinking about a character who’s interesting to me for various reasons. It might be the back story that’s interesting, or it might be a personality trait that’s interesting. And then I’ll have a setup, like, three women go on vacation and stir up some nonsense that gets them in trouble. And for me, when I can start writing is when — it’s almost like matchmaking: Oh, OK, if I take that character that I’ve been thinking about with that back story and that set of anxieties and I put her in this scenario, that’s going to get interesting.”

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