When a chance encounter sparks an unlikely bond between rival murderers Sloane and Rowan, the two find something elusive—the friendship of a like-minded, pitch-black soul. From small-town West Virginia to upscale California, from downtown Boston to rural Texas, the two hunters collide in an annual game of blood and suffering, one that pits them against the most dangerous monsters in the country.

Aiden Valentine has a secret: he’s fallen out of love with love. And as the host of Baltimore’s romance hotline, that’s a bit of a problem. But when a young girl calls in to the station asking for dating advice for her mom, the interview goes viral, thrusting Aiden and Heartstrings into the limelight. Lucie Stone thought she was doing just fine. She has a good job; an incredible family; and a smart, slightly devious kid. But when all of Baltimore is suddenly scrutinizing her love life—or lack thereof—she begins to question if she’s as happy as she believed.

Rosie Belmont has been driving me wild for years. The good kind of wild. The bad kind of wild. But mostly the kind of wild that comes with wanting your best friend’s little sister and knowing you can’t have her. After living in the city, she comes blasting back into Rose Hill like a storm. Beautiful, messy, and chaotic. And one wide-eyed desperate plea for a job is all it takes for me to hire her.

I caught the attention of a monster. I didn’t ask for it. Didn’t even see it coming. But the moment I do, it’s too late. Killian Carson is a predator wrapped in sophisticated charm. He’s cold-blooded, manipulative, and savage. The worst part is that no one sees his devil side. I do. And that will cost me everything. I run, but the thing about monsters? They always chase.

Scarlett Vandermeer is swimming upstream. A Junior at Stanford and a student-athlete who specializes in platform diving, Scarlett prefers to keep her head down, concentrating on getting into med school and on recovering from the injury. She has no time for relationships. Swim captain, world champion, all-around aquatics golden boy Lukas Blomqvist thrives on discipline. It’s how he wins gold medals and breaks records: complete focus, with every stroke. On the surface, Lukas and Scarlett have nothing in common. Until a well-guarded secret slips out, and everything changes.