What Mystery Thriller Books Feature 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.

"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?

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?

With the sudden death of his sister, detective Dawson Wills was going to give everything to find her killer, he wanted to do it alone. To find and make the killer pay for causing him so much pain, but unfortunately, life doesn’t always give you what you desire. Dawson was giving a partner, one of the things he disliked as a detective. Jane Johnson was Dawson's dream woman, how would Dawson maneuver his way from falling in love with this beautiful woman who was now his partner and finding his sister’s killer? He dislikes having partners, but detective Jane was too beautiful to be disliked….

I'm Caleb Jennings. When I announce my early retirement, everyone in the city cheers. Only Nathan Sloan, my junior from the police academy, who claims to be able to see things from the criminal's perspective, panics at the news. During the party organized in his honor, he openly states his intention to find me. "I owe my success to the guidance Caleb Jennings has provided me all along. I hope everyone can help me find him and bring him back into the police force." Scoffing, I choose to ignore that. … In my previous life, I was the celebrated captain of a criminal investigation team. Yet, whenever I uncovered a clue, Nathan, a rookie in the city police department, would announce it first, beating me to it. After multiple incidents like this, everyone started saying that I was past my prime. To prove myself, I worked myself to the bone for three months before finally locating the hideout of a human trafficking ring. However, when I arrived on the scene with my team, Nathan had already swept through the place. He was launched into stardom, becoming the rising star detective that everyone adored. As for me, the public mercilessly tore me apart, labeling me as incompetent and shaming me. Due to the pressure from work and the negative public opinion directed at me, my mind was distracted. I ended up getting killed while hunting down the remnants of the trafficking ring. When I open my eyes again, I find that I'd gone back in time—to the day we launch a raid on the human traffickers' hideout.