Is Netflix’s ‘The Stranger’ Based on a True Story of Deception?

Not exactly. While the book can provide the basic storyline, it had to undergo a lot of changes to work for Netflix. For one thing, the book took place in the U.S., New Jersey to be precise. The show will be set in the U.K. and because of the change in venue, several other details had to change. Adam, who is being played by The Hobbit‘s Richard Armitage, will no longer have a son playing lacrosse, because lacrosse isn’t too big in the U.K.

Source : https://www.distractify.com/p/the-stranger-netflix-true-story