Stella seems to have her whole life ahead of her: She has just graduated with a dual masters in Psychology and Criminal Justice, she is engaged to the man of her dreams after a whirlwind romance, and she is moving to the East Coast with him as she prepares for the wedding and searches for a dream job, hoping to be a criminal profiler. She is unbelievably excited for her life together with Chris—until she meets his family.

FBI Agent Tara Mills is young, brilliant and new to the force. With a promising career in front of her, she faces the ultimate test when she is assigned the case. It soon proves to be more challenging than she ever could have imagined – an impossible riddle that leaves even her seasoned partner stumped.

When the chief suspect in the notorious "peekaboo cop killer" case blew himself up, almost taking lead investigator DCI  Duncan Bone with him, the psychologically damaged detective thought his days on the force were over. But, when another PC is abducted and murdered in the same deranged peekaboo fashion, Bone is persuaded to return to lead the new investigation.

A couple expecting their first child is brutally murdered. The prime suspect is the scorned ex-wife with no knowledge of how she got there or what happened. It's up to Detective Charlotte Pierce to unravel the mystery of the newlyweds’ murder. It looks like an open and shut case, but certain things are not adding up.

The Baxter house has been on the estate agent’s books for decades. Dilapidated and near derelict, nobody is interested in it. But, for one buyer, the remote location and rat-infested cellar are perfect. For the first year, Mackenzie’s marriage to Derek was ideal. But Derek believes she is having an affair, and when she realises her husband is becoming controlling, she knows she’s made a terrible mistake. When she threatens to leave and then disappears, no one believes she has been abducted.

On the surface, Kit Caldwell has it all. A senior in college with her future ahead of her, lots of friends, lots of parties - not to mention also having the eye of Tommy, the star quarterback of the football team. But underneath, Kit's life is a charade, built on a foundation of secrets and lies, including one so dark it threatens to tear her world apart: her twin sister, Cat, was kidnapped when they were both seven, never to be heard from again. That is, until one dark Halloween night.

With a list of suspects a mile long, and endless augmented reality dead ends, Cami’s first case does not look promising. Partnered with a condescending agent who resents her presence, Cami must find a connection to the physical world before time runs out. Working with the same people that fumbled her missing sister’s case when she was young, Cami must heal old wounds and lean into her tech genius to solve a case the FBI can’t.

FBI Special Agent Faith Bold, hospitalized and haunted by her encounter with a serial killer, is ready to retire—when Turk, a K9 German shepherd, himself traumatized, comes into her life. When a new serial killer strikes, leaving his victims at the bottom of isolated wells, Faith, this time with Turk at her side, will stop at nothing to hunt him down and save the next victim before it is too late.

Despite being a rising star in the BAU unit, FBI Special Agent Hailey Rock still lives in the shadow of her older sister, who remained in their small Midwestern town to become a police sheriff and who remains the favorite in their parents’ eyes. Hailey has not thought of her estranged family in ages, but when young women turn up dead in her hometown, the FBI dispatches Hailey to solve the case her sister cannot—and forces her to face demons, including that of her kidnapped sister, that Hailey wished she would never face again.

Harley, reeling from her being put on leave, from her long-term relationship falling apart, and from her father’s dying, is hardly ready to return to her hometown, to its long-buried secrets, and her tortured past. She spent her life escaping this small town—but, as she settles back in, she wonders: Might she have been wrong all this time? Yet as more bodies surface and as every clue leads to a dead end, Harley, clashing with her new partner, realizes she’s in a race against time.

In ONCE GONE, women are turning up dead in the rural outskirts of Virginia, killed in grotesque ways, and when the FBI is called in, they are stumped. A serial killer is out there, his frequency increasing, and they know there is only one agent good enough to crack this case: Special Agent Riley Paige. Riley is on paid leave herself, recovering from her encounter with her last serial killer, and, fragile as she is, the FBI is reluctant to tap her brilliant mind. Yet Riley, needing to battle her own demons, comes on board, and her hunt leads her through the disturbing subculture of doll collectors, into the homes of broken families, and into the darkest canals of the killer’s mind. As Riley peels back the layers, she realizes she is up against a killer more twisted than she could have imagined.

In Left to Die, FBI special agent Adele Sharp is a German-and-French raised American with triple citizenship—and an invaluable asset in bringing criminals to justice as they cross American and European borders. When a serial killer case spanning three US states goes cold, Adele returns to San Francisco and to the man she hopes to marry. But after a shocking twist, a new lead surfaces and Adele is dispatched to Paris, to lead an international manhunt.

FBI Special Agent Katie Winter is no stranger to frigid winters, isolation, and dangerous cases. With her sterling record of hunting down serial killers, she is a fast-rising star in the BAU, and when a woman is discovered in the middle of a frozen lake, Katie is the natural choice to partner with Canadian law enforcement to track the killer across the brutal and unforgiving landscape.

When a bloated body is found floating in international waters, twenty miles out at sea, Lily Dawn is called back to the Caribbean. But this is not a happy homecoming. She hasn’t seen her parents since moving to Miami ten years ago, and now her sister has been declared legally dead.

FBI Special Agent Taylor Sage has crossed the country and transferred to her dream job with the BAU at Quantico. With a new job, a new house, and her husband by her side, Taylor is ready to put the darkness of her past behind her: a sister who vanished when she was a teenager.