Which New Thriller Mystery Books Follow Detectives With Dark Pasts?

This author once failed as a heroine… and returned as something entirely different. Not as a savior. But as the villain. And she didn’t come back empty-handed. She brought secrets. She brought sins. She brought a story that was never meant to be read. Sinners & Saints is not just a collection of dark romance stories— It is a confession. A warning. And a door best left unopened. Within these pages lie twisted love stories where desire and destruction walk hand in hand, and every choice comes with a cost. So the question is simple: Will you turn away… or step inside anyway?

I quit and dipped. City threw a parade. Only Jenna Blake—my oh-so-gifted junior who claimed she could "see through killers' eyes"—lost it. At her celebration banquet, she went full drama queen: "I owe everything to Kate Mercer. Please, bring her back!" I laughed. Cold. Not happening. Last time around, I was the hotshot detective. But every clue I found? She dropped it first like she read my mind. People started saying I was washed. So I went all in—three months, no sleep, cracked a massive trafficking ring. Led the raid myself. She beat me there. Again. Place was cleaned out. Boom. She's the city's golden girl. I'm the clown with no game. Pressure got ugly. My head snapped. I died chasing the last scumbag. Then—bam. I woke up. Same day. Raid morning. Round two.

On her unconscious bed, her husband gave the order to abort her child. Their child. Driven by lust and desperation for power, Killian Powell framed Rose Webster just to divorce her and marry her twin. At what price? To easily buy his way into her family's corporation. Rose had the evidence to expose her husband's true face to the world and tear him down. But of what use was it when her vicious parents threatened to stop the treatment of her sick daughter if she dared release the evidence? Like always, they cared more about what they stood to gain from a traitor who stabbed their daughter—a man they once despised when he was nothing. As much as Rose couldn't trade the life of her daughter, she couldn't bear the internet stigma and mockery. Not to mention her job as a detective was suspended as if she were some criminal. The whole world seemed to close in on Rose until redemption came in the form of a dangerous offer. When solving a risky murder case was the only way to get back at her ex-husband and also keep her child safe, how far would she go to ruin her ex?

"He's gone, Elizabeth," her captain Charles Johnston tells her. Elizabeth blinks back her tears. Her face full of shock and disbelief. Her frozen stare interrupted by his words. "He left his badge." "There's no way," she thought. He wouldn't leave her like this. No warning, no phone call, no letter. She was more to him than that or at least so she thought. That conversation has plagued her for 3 years. For 3 long years, Detective Elizabeth Ryan tried to shut out him, to finally be able to move on. But just as she does, he abruptly returns seeking more than what either of them anticipated. Will Elizabeth be able to forgive him, or will the past be too much to swallow? What happens when life throws her too many twists to handle?

When a secret agent falls in love with the very mob boss she's supposed to be taking down, there can only be deadly consequences...

There are three things Samara Culkin loves: her father, wearing high heels, and being a detective. But in a world where being a female officer is considered weak, she struggles to find a place where she feels truly belong. Determined to prove The Detective Tag firm that she is worth it, she sets out to solve one of the biggest cases the city of Los Angeles has ever seen. There are three things Clayton Jones likes: his car, detective skills, and the female detective who happens to catch his eye—Samara. As an expert and well-known crime officer, he is given the chance to work with her; a one-time possibility that rarely happens. The only problem is that she hates him. And he does not know why. The Detective Tag is a crime fiction with a twist of romance. Join Samara and Clayton—all the bitterness, dislikes, and romance in between—as they dive into the world of crime cases and murder investigations. Well, maybe a bit of finding love, too.