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8th August 2019
02:52pm BST

On the inspiration behind the book, she said:
"I saw something on the internet about a teenage boy in the United States who’d had his wifi cut off by parents because he was spending too much time on the web. "So, he broke into the neighbour’s house to borrow wifi. [The story] got me thinking about what a boy with hacking abilities would do [in a similar scenario], and what he would find - and how his mum would feel if she found out he had been breaking into their house. "And, of course, I write thrillers so there had to be a body in there."Lapena also spoke about her process behind writing Someone We Know - and how it compared to 2018's An Unwanted Guest. She explained:
"I never plan [ahead in a novel] and I don’t know what’s going to happen. I usually start with a couple of characters who I think may be the killer, then I add other ones - and twists, and turns - along as the story takes place. "[Someone We Know] is more like my original stories [The Couple Next Door, A Stranger In TheHouse]. "It was harder to write An Unexpected Guest because I’m not a planner - I’d have to go back and change things, details. This one was more wide open, more my original styles."
The author, who first wrote literary fiction before making the move to thrillers, also revealed what drew her to the genre - and why she thinks thrillers have become so popular.
She added:
"For me, I'm very curious about people. And I think a crime story gives you huge scope to look at everything people experience. "[As for why thrillers are so popular], I think it's just the psychology of it all. I think people are interested in psychology; why people do what they do. And we're all just trying to understand the world around us."

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