Butcher & Blackbird by Brynne Weaver

Everyserial killer needs a friend. 

Every game but have a winner. 

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 puts them against the most dangerous monsters in the country. But as their friendship develops into something more, the restless ghosts left in their wake are only steps behind, ready to claim more than just their newfound love. Can Rowan and Sloane dig themselves out of a game of graves? Or have they finally met their match?

Butcher & Blackbird is the first book in the Ruinous Love Dark Romance trilogy of interconnected stand-alone dark romantic comedies. This is dual POV novel and ends on a HEA.