What Are The Best Underworld Novels With Realistic Crime Plots?

I found out my husband of three years had cheated on me and his mistress is the one who told me—because he didn’t have the balls to do it himself. I move out and get a new apartment, a job as a bartender, and try to move on with a broken heart. I wonder where it all went wrong, if I hadn’t been enough for him, if I’d been stupid for marrying him in the first place. I’m at work one night when he walks inside—the most beautiful man I’ve ever seen. He sits at the bar and a forest fire burns between us. I was depressed the moment before he entered, but the second I look at his blue eyes, I forget the dumpster fire that my life has become. I invite him back to my place and it’s the most passionate night of my life. I expect to never see him again. I just want him as an anti-depressant—but he wants me all to himself. I just got my heart ripped out of my chest so I want something easy and no-strings-attached, but he wants all the strings because he’s hooked. I don’t get much of a say in the matter, and that’s not surprising when I learn why—because he’s the Butcher. The crime lord of all crime lords, the boss that overshadows all of Paris, that makes everyone abide by his rules—or pay. And now I’m his.

After catching her fiancé in bed with her best friend at their engagement party, Lana Rivera's perfect life shatters in a single night. Humiliated and heartbroken, she feels the scene, desperate to disappear. But running from one betrayal thrusts her into something far more dangerous... Seeking refuge, Lana wanders into an exclusive lounge that feels less like a bar, and more like a secret society. Cigars and cologne linger in the air, Italian jazz hums in the background, and patrons watch everything with sharp, vigilant eyes. But when she witnesses a man executed in cold blood, right into the middle of the club, she realises too late that she has stumbled into the world of Underground crime... quite specifically... the Mafia. Before she can escape, Ezio Benedetti, the ruthless Don who owns the lounge, claims her. At first, she believes she will be killed for what she's seen, but instead, Ezio decides to keep her, to parade her, and to make her part of a world she doesn't understand. When he brings her to his family's most elusive event, Ezio shows her off as his newest prize. But Ezio isn't the only powerful man in the room... Among the guests stands Dante Valencia, the one they call the Mafia King, Don of the most feared family in the city, and Ezio's sworn enemy. When Dante sets his sights on Lana, Ezio refuses to let her go, refuelling the war between the two empires. Now, Lana is caught between two Rival Kings of the Underworld, one who wants to possess her, and one who wants to save her. In a world built on loyalty, blood and power, her heart might be the most dangerous thing of all...

Dr. Alessia Russo's life is spiraling out of control. Drowning in debt and desperate to help her imprisoned brother, the brilliant ER physician makes a decision that will change her life forever. One moonlit rendezvous in a shadowy alley catapults her into the dangerous world of the Bratva, where loyalty is everything and one wrong move could be her last. Enter Nikolai Zhukov, the enigmatic and ruthless boss of the Russian mafia. With eyes that pierce her soul and a touch that sets her skin ablaze, Nikolai offers Alessia an irresistible proposition: become his personal doctor, no questions asked, in exchange for more money than she ever dreamed possible. As Alessia navigates the treacherous waters of the criminal underworld, she finds herself drawn deeper into Nikolai's web. By day, she saves lives in the ER. By night, she tends to bullet wounds and knife fights, all while trying to keep her moral compass intact. But Nikolai is no ordinary crime lord. Behind his cold exterior and calculated moves lies a man with hidden depths and unexpected vulnerabilities. As the heat between them intensifies, Alessia realizes she's not just risking her career and freedom – she's in danger of losing her heart to the very man she should fear most. With enemies closing in and loyalties tested, Alessia must choose between the safe life she's always known and the exhilarating, perilous future Nikolai offers. In a world where passion and danger collide, can their forbidden love survive? Or will the price of entering Nikolai's world prove too high for the good doctor to pay? "Code Black: A Bratva Billionaire Romance" – a heart-pounding tale of love, loyalty, and the thin line between right and wrong.

He saved her from a lifetime of slaving away at a strip club, but the next thing she knows, she's plunged into the dark and dangerous world of organized crime...

Alejandro spent years trying to bring the mafia down. Now he’s living under the roof of one. After a dangerous encounter leaves him at the mercy of the powerful crime family he once tried to expose, Alejandro expects prison… or a bullet. Instead, he finds himself entangled with Miguel de Luca—the ruthless heir to the empire he hates. Cold. Calculating. Untouchable. Miguel should be Alejandro’s enemy. But the deeper Alejandro is pulled into Miguel’s world of secrets, blood debts, and power struggles, the harder it becomes to remember which side he’s on. Because behind the mafia prince’s iron control is a man who watches him like he’s something worth protecting. And that might be the most dangerous thing of all. When betrayal begins to spread through the family ranks and assassins close in from every direction, Alejandro must decide: Expose the empire he swore to destroy… Or risk everything for the man who now holds his heart—and possibly his life—in his hands. In the mafia, loyalty is currency. Love? That can get you killed.

Dante Santoro is a ruthless Mafia lord, feared and revered in equal measure. His empire stretches far and wide, and his control is absolute. But behind his cold, commanding exterior lies a man who will stop at nothing to protect what is his. Ethan John, an undercover agent and former doctor, has been assigned to infiltrate Dante's inner circle. Posing as Dante's personal physician, Ethan’s mission is simple: gather intel and bring down the Mafia kingpin before his criminal empire can expand further. But as the weeks pass, Ethan is torn between duty and desire. The cold, calculating mob boss he was sent to destroy begins to pull at his heart in ways he never anticipated. As passion ignites between them, Ethan finds himself in a perilous game of lies, deception, and betrayal. With the government breathing down his neck and Dante's trust tightening like a noose, Ethan must decide where his true loyalties lie, before it’s too late. Can love bloom in the most dangerous of places? Or will the Mafia lord’s grip be too strong to escape?