I think it's a case of using the real place as a leaping off point – taking from it the things that are evocative and that lend the work the tone you're looking for, while also bending it to my own fictional needs.
"[1] Documentary filmmaker Alex travels to Blackwood Bay, a quaint former smugglers' Yorkshire[1] village set on a rugged coast.
The past catches up with Alex as the current teenage girls living in the village are also in danger... Dipal Acharya in Evening Standard explains that Watson "attempts to navigate some complex questions raised by social media, such as how our default communities are more likely to be found online than next door, how we document everything from banal daily rituals to shocking acts of abuse on our smartphones so relentlessly and openly, the disconnect between our online and real life personas which embolden us in damaging ways, as well as how we process trauma."
[2] More reviews are more positive though: Alison Flood writing in The Observer praises the novel "The reader begins to suspect the reality of Alex’s past just as she does, with Watson adroitly bringing the strands of his story together to create a disturbing journey to a shocking truth.
"[4] In Publishers Weekly, Clare Conville writes " A tight, brisk plot drives this sharp character study.