Prague is a strange city where nobody can be trusted or is who they seem at first to be.
https://crimereads.com/crime-novels-set-in-prague/
Pavel Kohout’s The Widow Killer, Milos Urban’s The Seven Churches, Benjamin Black (of course, really John Banville), Philip Kerr’s Berlin cop Bernie Gunther, Laurent Binet’s 2010 bestseller HHhH Binet, Rob Hart’s The Woman from Prague, John Connolly’s The Black Angel, Kelly Jones’s Lost and Found in Prague, Simon Mawer’s Prague Spring, And finally, Prague’s leading literary son, Franz Kafka and The Trial . . .
and not for nuthin’, my own collection includes Umberto Eco’s Prague Cemetery