Rivers of London began as a series of novels by Ben Aaronovitch.
Each volume is a separate story featuring Peter Grant, who is both a junior detective and trainee wizard. He is joined in the stories by his boss Detective Chief Inspector Thomas Nightingale, a police colleague of Nightingale’s, and Peter’s girlfriend, Beverly Brook, who is the goddess of her namesake waterway.
The setting is the dark side of London, where criminality and evil collide. You can read the graphic series, or the novels or both, and on his own website Aaronovich has a chronology, which, of course, is not the publishing chronology, where you can read both in the sequence that the events unfold (mostly).
London is a background, and clearly the inspiration, but these could take place in any big city, on cusp of night and darkness, where reality meets the fears and real dangers that haunt us all.
Peter Swanson writes thrillers and his last two, the only two I have read, are set in Boston and New England.
Her Every Fear is set on Beacon Hill, in Boston, where I used to teach, and it has a second strand of the story set in Belsize Park in London, near where I went to secondary school. How could I not read it?
The “Her” of the title is Kate Priddy, and she has arranged a flat swap with her cousin, Corbin Dell, who she has never met. Kate is all alone in the opulent flat in Boston. Then a neighbour disappears, who it turns out later has been murdered and Corbin is a suspect. Several creepy neighbours befriend Kate, but she suffers from some form of anxiety that may come from and although she lets them close, she is both nervous, but can’t step away. The net closes in, and Kate is in real danger that stems from a meeting Corbin had as an exchange student in London many years earlier.
As a writer, Swanson is ruthless. He draws a string around his characters and his readers until the bag is closed above their heads and there is almost no escape. For the readers who like tightly written thrillers with an impressive sense of place his books are perfect entertainments.