Fiercely Protective by R. Leigh

Rogue Delaney stood out as one of the nation’s most desirable bachelors. Wealthy and influential.
There are whispers connecting him to some of the world’s most dangerous crime syndicates. Additionally, he co-owned Sinners, Chicago’s top nightclub, where patrons could revel in any indulgence their hearts desired.
Brielle Rogers was desperate for a job. When she interviewed at Chicago’s most exclusive club, she had no clue about the perilous world she was about to enter. Her new boss was a walking red flag—devilishly handsome, wealthy, and an irresistible temptation. He was exactly the kind of man she should avoid, but when danger loomed, he might be her only savior.
Rogue was determined to have her. The instant she stepped into his club, resembling a lost angel who had mistakenly wandered into hell, he knew she would be his. She embodied everything he was not, and he would stop at nothing to make her his.
As the dangers from his world threatened to clash with those from her past, it would take all his strength to protect his lost angel from those who sought to take her away.