X Marks the Stalker (The Hemlock Society, #1)

She hunts killers. He is one. Opposites attract has never been so literal.Crime journalist Oakley Novak has built her career exposing Boston’s darkest secrets, but she never expected a serial killer to turn the tables and stalk her.

Xander Rhodes spent weeks watching her through hidden cameras, captivated by her sharp mind and relentless drive, until she catches him red-handed and, instead of running, challenges him with a glare that could melt steel.
Xander’s either found his soulmate or lost his damn mind. Probably both.

When Oakley recruits him for her revenge plan against the man who murdered her parents, their partnership shatters every rule of Xander's secret murder society.
Now they're being hunted by both sides—the law and the shadows—while racing against time to take down the untouchable enemy who took everything from her.

If you’re obsessed with dark romance laced with wicked humor, serial killers with a knack for banter, and heroines who wield wit as sharply as weapons, this sinful story will carve its way into your soul.