On a balmy spring evening, four high school seniors - three boys and a girl - enter a park in the small Pennsylvania city of Conroy. The next morning, two of the boys are found shot to death, and the girl and the third boy are gone. After three weeks with no leads and no sign of either of the two missing teenagers, the chief of police begins to wonder if they too were victims.

News that the body of a recently murdered prostitute—stabbed repeatedly and dumped on Georgia's Shelter Island—has been identified as Shannon Randall stuns the FBI, particularly special agent Dorsey Collins. Twenty-four years ago, nineteen-year-old Eric Louis Beale was convicted and later executed for Shannon's murder—and the agent in charge of the case was Dorsey's father. Now Dorsey is determined to find out where her father's investigation went wrong, what part he played in the death of an innocent man, and where Shannon has been all this time.

A fashion magazine features editor, Leah McDevitt is haunted by the memory of her cherished younger sister, Melissa, who vanished years ago. Missy, whose extraordinary eyes - one blue, one brown - may have lured her abductor to her. When Leah receives a letter from death-row inmate Raymond Lambert, she eagerly agrees to pay him the long-standing reward for information about Melissa - even if it means coming face-to-face with a notorious serial killer. But before Lambert can impart his secrets, he himself is killed.

It was inescapably chilling, as if the murderer was methodically working his way down a page torn from the phone book. The three victims brutally killed in their own homes had one thing in common: They were all listed as M. Douglas. The fact that Mara Douglas is next on the list has her jumping at shadows, until FBI agent Aidan Shields shows up to make sure she doesn't become the fourth victim.

In the wake of his wife's murder, agent Grady Shields turned his back on the FBI - and everything else-to retreat into the vast solitude of Montana, grieve for his lost love, and forget the world. But after years in seclusion, his sister's wedding draws him to St. Dennis, a peaceful town on the Chesapeake Bay. Though he swears he isn't interested in finding love again, Grady can't ignore the mutual sparks that fly when he meets Vanessa Keaton.

Twenty-six years ago, just before a series of brutal murders rocked the idyllic town of Bowers Inlet, Cassie Burke lost her family and nearly her own life to a transient befriended by her father. Back then, Cassie was a scared kid; now, she's a homicide cop. Back then, the suspect was caught and convicted; he died in prison. But now the killing has started again. And all signs indicate that the Bayside Strangler has come back for more.

Though India Devlin left her hometown to pursue a brilliant career as a criminal prosecutor, she has always loved historic Devlin’s Light, visiting as often as her busy schedule permits. But when her brother is found murdered on the steps of the lighthouse - the town’s namesake - she returns to uncover who killed Ry. When her brother’s good friend, Nick Enright, offers to help in her investigation, India accepts - after all, he’s the one who found Ry that night, and heard his mysterious last words.

When underwater archaeologist Sam McGowan is asked to help salvage a sunken Confederate blockade runner, he’s eager for the opportunity to investigate his own family history - especially since the project is being handled by Gordon Chandler, a notable authority in underwater salvaging. When he finds Gordon’s daughter Rachel in charge, Sam is not pleased. She can’t possibly be her father’s match. But not only has Sam wildly underestimated Rachel’s professional abilities, he has yet to discover the many other facets of this complex woman.

Athena Moran is well known as the young widow of a police officer slain in the line of duty and as the daughter of a beloved former city councilman. But when she meets Quentin Forbes, a tough newspaper reporter, emotions that she believed died along with her husband start to stir again. Then she is asked to run for mayor, and the political contest that follows will test her newfound feelings to the breaking point, teaching her that things are not always as they appear and that much of what she has believed is more smoke than substance.

On the fast track at a Philadelphia consulting firm, Abigail McKenna has put her personal life on hold, content to focus on her professional success. But when she’s suddenly laid off, Abby finds herself with a dwindling savings account and no promising job prospects. So when a letter arrives holding the solution to all her financial problems, Abby is relieved but saddened: her dear Aunt Leila has passed away, naming Abby the sole beneficiary of her majestic Victorian estate in North Carolina. But Abby is in for a few surprises.

It was a lifetime ago that recently widowed Maggie Flynn was in Wyndham Beach. Now, on the occasion of her fortieth high school reunion, she returns to her hometown on the Massachusetts coast, picking up right where she left off with dear friends Lydia and Emma. But seeing Brett Crawford again stirs other emotions. He shared Maggie’s dreams - and eventually, a shattering secret that drove them apart. Buying her old family home and resettling in Wyndham Beach means a chance to start over for Maggie and her two daughters, but it also means facing her rekindled feelings....

At a Texas county fair, children’s book author Elle Portman is enjoying a rare night out with her favorite cowboy: her two-year-old son, Charlie. But just as they’re about to head home, the unthinkable happens: a shooter opens fire into the crowd, causing widespread panic to erupt all around them. Also caught in the melee is corporate consultant Calder Hudson. When he wakes up in the hospital, he's told he's lucky. Others didn't fare we well, which instills in Calder a furious determination to get justice.

Jack McCann has been in love with Shelly since they were teens. They married just out of college and right before he went to work as an undercover agent for the FBI. When he can, he slips away from his assignments to see her. Jack has been undercover on his latest case for months, investigating a weapons-smuggling business. But just as the FBI is set to make the bust, Jack’s cover is blown. The last thing he feels as he crashes through a warehouse window and into the open water is a bullet piercing his back. The last thing he hears is Adam Wu promising to destroy everyone Jack loves.

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.

Fourteen years ago, Kaitlin Roe was the lone witness to the abduction of her cousin Gina. She still remembers that lonely Virginia road. She can still see the masked stranger and hear Gina’s screams. And she still suffers the guilt of running away in fear and resents being interrogated as a suspect in the immediate aftermath. Now Kaitlin has only one way to assuage the pain and nightmares—by interviewing everyone associated with the unsolved crime for a podcast that could finally bring closure to a case gone cold.