When a reporter dies in a shockingly familiar way, the media rushes to announce the return of the PDQ Killer. The city of Denver reels, but no one more than Harry Kugel. After all, he is the PDQ Killer—or was fifteen years ago. And he didn’t do this. Still working to reform his ways, Harry won’t let some amateur murderer ride his twisted coattails and risk drawing the police back his way. To protect his legacy and quiet new life, he’ll have to expose the copycat. Without exposing himself.

In San Francisco in 1866, an Irish nun, abandoned following a torrid relationship with a Chilean aristocrat, gives birth to a daughter named Emilia del Valle. Raised by a loving stepfather, Emilia grows into an independent thinker and a self-sufficient young woman. To pursue her passion for writing, she is willing to defy societal norms. At the age of seventeen, she begins to publish pulp fiction using a man’s pen name. When these fictional worlds can no longer satisfy her sense of adventure, she turns to journalism, convincing an editor at The Daily Examiner to hire her.

Along the ever-changing border of gentrifying Los Angeles, 17-year-old Monique Darson is found dead at a condominium construction site, hanging in the closet of an unfinished unit. Homicide Detective Elouise "Lou" Norton's new partner, Colin Taggert, fresh from the comparatively bucolic Colorado Springs police department, assumes it's a teenage suicide. Lou isn't buying the easy explanation. For one thing, the condo site is owned by Napoleon Crase, a self-made millionaire...and the man who may have murdered Lou's missing sister, Tori, 30 years ago.

Mickie Lambert creates “digital scrapbooks” for clients, ensuring that precious souvenirs aren’t forgotten or lost. When her latest client, Nadia Denham, a curio shop owner, dies from an apparent suicide, Mickie honors the old woman’s last wish and begins curating her peculiar objets d’art. A music box, a hair clip, a key chain - twelve mementos in all that must have meant so much to Nadia. But these tokens mean a lot to someone else, too. Mickie has been receiving threatening messages to leave Nadia’s past alone.

When Chad Young moves home, it’s not a decision he makes lightly. A former military man, he doesn’t make any decision lightly. But his father’s passing has left the family—and their business—reeling. Now more than ever, they need to stick together. Britt Starkweather moved to Maine with her boyfriend, never imagining he’d abandon her there. With no money and nowhere to go, she accepts the Youngs’ offer of a job and room on their property. What more does she have to lose?