On the muddy banks of the Calumet River, a body has been found posed next to a series of mysterious glyphs and bearing wounds from a ritualistic slaying. Chicago detective Addie Bisset knows only one man who can decipher the message left by the killer: her friend Dr. Evan Wilding. A brilliant forensic semiotician, Evan decodes the etchings as Viking Age runes. They suggest either human sacrifice or righteous punishment. But to what god? And for what sins? Only one thing is clear from the disturbing runic riddles: there are more victims to come.

Assistant US Attorney Alondra Diaz hates traffickers. And she’s determined to put one of America’s most powerful financiers, Andrew Schrader, in prison forever for his crimes against children. But Schrader has videos implicating some of the most powerful members of the US national security state. To eliminate Diaz, the powers that be bring in a contractor: Marvin Manus, an implacable assassin whose skills have been forged in intelligence, the military, and the hardest prisons.

Taryn Moore is young, beautiful, and brilliant…so why would she kill herself? When Detective Frankie Loomis arrives on the scene to investigate the girl’s fatal plunge from her apartment balcony, she knows in her gut there’s more to the story. Her instincts are confirmed when surprise information is revealed that could have been reason enough for Taryn’s suicide - or a motive for her murder.

Lieutenant Abby Mullen is no stranger to crisis. As the hostage negotiation instructor for the NYPD, she deals with worst-case scenarios every day. Nothing fazes her anymore. That all changes when she gets a call from Eden Fletcher, a fellow survivor of the infamous Wilcox cult. The two haven’t spoken since the night of a tragic, fiery massacre, when their paths diverged. But now Eden needs Abby’s help: someone has kidnapped her son and is demanding a $5 million ransom. As Abby throws herself into the case, she can’t help but wonder why the kidnapper has targeted Eden.

Coming from scandalous Florida treasure hunters and drug smugglers, Sloan McPherson is forging her own path, for herself and for her daughter, out from under her family’s shadow. An auxiliary officer for Lauderdale Shores PD, she’s the go-to diver for evidence recovery. Then Sloan finds a fresh kill floating in a canal - a woman whose murky history collides with Sloan’s. Their troubling ties are making Sloan less a potential witness than a suspect. And her colleagues aren’t the only ones following every move she makes. So is the killer.

Former CIA operative turned mercenary for hire Ryan Decker’s specialty is rescuing kidnap victims. Hired by an influential US senator to liberate her daughter from a human-trafficking ring, Decker never anticipated sabotage or that the assault could go so disastrously wrong. The hostage is dead. His team is wiped out, and so are their families, including Decker’s own wife and son - eliminated one by one by the Russian mafia. And he’s survived to take the fall.

Plagued by traumatic childhood memories, crime reporter Sawyer Brooks still struggles to gain control of her rage, her paranoia, and her life. Now, after finally getting promoted at work, she is forced to return home and face her past. River Rock is where she’d been abandoned by her two older sisters to suffer alone, and in silence, the unspeakable abuses of her family. It’s also where Sawyer’s best friend disappeared and two teenage girls were murdered. Three cold cases dead and buried with the rest of the town’s secrets.

Former Army Ranger Pierce Hunt is no stranger to violence. Fresh off a six-month suspension, he’s itching to hit a notorious Mexican drug cartel where it hurts, even if that means protecting crime boss Vicente Garcia, a witness in the case against sadistic cartel leader Valentina Mieles. But things spiral out of control when the cartel murders Garcia and kidnaps his granddaughter and an innocent bystander, Hunt’s own teenage daughter.

After artist Claire Beaudry Chase is attacked and left for dead in her home on the Connecticut coast, she doesn’t know who she can trust. But her well-connected husband, Griffin—who is running for governor—is her prime suspect. Just before the attack, Claire was preparing for an exhibit of her shadow boxes, one of which clearly accuses Griffin of a violent crime committed 25 years ago.

When a mutilated body is found hanging in a seedy motel in Philadelphia, forensics specialist Liam Dwyer assumes the crime scene will be business as usual. Instead, the victim turns out to be a woman he’d had an affair with before breaking it off to save his marriage. But there’s a bigger problem: Liam has no memory of where he was or what he did on the night of the murder.

FBI agent and former military codebreaker Daniela “Dani” Vega witnesses a murder on a Manhattan sidewalk. The victim is chief of staff for a powerful New York senator. The assassin turned informant is Gustavo Toro. His code: hit the target and don’t ask questions. When Dani suspects a complex conspiracy, the only way to take down the mastermind is from the inside, forcing her to partner with Toro. Together they must infiltrate the inner circle at a remote facility. Except it’s a trap. For all of them.

Lisa Power is a tortured ghost of her former self. The author of a bestselling thriller called Thief River Falls, named after her rural Minnesota hometown, Lisa is secluded in her remote house as she struggles with the loss of her entire family: a series of tragedies she calls the “Dark Star.” Then a nameless runaway boy shows up at her door with a terrifying story: He’s just escaped death after witnessing a brutal murder - a crime the police want to cover up. Obsessed with the boy’s safety, Lisa resolves to expose this crime.

A decade ago in upstate New York, art student Emma McCullough walked into the woods and was never seen again. It’s a mystery that still haunts her bucolic university town and her broken family, especially her sister Haley, whose need for closure has become an obsession. But now, finally, the first piece of evidence in the vanishing has been found: Emma’s bracelet, lodged in a frozen piece of earth at the bottom of a gorge.

Three Chicago women have been found strangled, embalmed, and posed as if still alive. Doubting the findings of the local PD’s profiler, the FBI calls on forensic psychologist Zoe Bentley to investigate. Zoe quickly gets off on the wrong foot with her new partner, Special Agent Tatum Gray. Zoe’s a hunter, intense and focused; Tatum’s a smug maverick with little respect for the rules.

After surviving a car accident on an icy road in Hagen, North Dakota, Lily Baker regains consciousness with no idea where or who she is. Scattered Bible verses and the image of a man lying in a pool of blood haunt her memory. The same night of the accident, a young woman is murdered and tossed in a dumpster. Kylie Milliard, Hagen's only detective, doesn't immediately recognize the victim, but Kylie soon discovers that Lily and the dead woman share a dark past...if only Lily could remember what it was.