Mafia Hitman's Daring Lover. Karzhov Crime Family Series, #2

Dedicated street cop Desiree Addams is determined to find the person responsible for killing her father and brother, even if her search paints a bullseye on her back. But when she meets a domineering Russian hitman, everything changes. With six and a half feet of pure muscle and piercing blue eyes, breathtakingly handsome Grigori is impossible to ignore. When their paths cross, Desiree can't help but be charmed and seduced by the intriguing man, even if they are on opposite sides of the law. Mafia hitman Grigori has a life steeped in violence and an unwavering loyalty to the organization, but one look at the petite, courageous cop and he knows he'll do everything he can to protect her.
She may be stubborn, daring and determined to go it alone, but Grigori has always liked a challenge. When her hunt for her family's killer pulls her into his dark underworld, she'll learn quickly that no one messes with what belongs to Grigori, and the Russian mafia always takes care of its own.