When LAPD detective Michael Gideon and his police-dog partner, Sirius, are assigned to the Special Cases Unit (SCU), Gideon knows their work lives will be anything but ordinary. SCU gets the cases no one else wants, the unusual and bizarre crimes that need special handling and special investigators. When a high-school student is found crucified in a local park, Gideon and Sirius must face up to the gruesome tableau and the motivation behind the murder. Complicating matters is a nightmare from their past, the scars of a terrible fire that nearly cost them their lives.

Caleb Parker has been on the run from his past ever since his father, a serial murderer known by the name of Shame, was electrocuted by the state of Florida. Wishing for nothing more than to start life anew and away from the dark shadows of his past, Caleb tries to distance himself from his father’s legacy by moving to California. But even when he’s far from his father’s killing grounds, the past catches up with Caleb when a new series of murders occurs - reminiscent of Shame’s brutal handiwork. Once more Caleb is thrust into the spotlight - only this time as the prime suspect.

Whether dueling with new forensics or the local old boys' network, irreverent defense attorney Andy Carpenter always leaves them awed with his biting wit and winning fourth-quarter game plan. But the fun stops the day Andy's dad, Paterson, New Jersey's legendary ex-DA, drops dead in front of him at a game in Yankee Stadium.

Nina Granville believes her business trip to Alaska will give her a short respite from the merry-go-round that came with her engagement to Congressman Terrence Donnelly. But instead of allowing her the peace she craves, Nina's getaway from the public eye means that no one witnesses her abduction into a very cold hell.

A body is discovered deep in a cave beneath the Yorkshire Dales. Leading the investigation into the mysterious death are experienced DCI Jim Oldroyd and his partner DS Carter, a newcomer from London. The deceased is Dave Atkins, well known throughout the village but not well liked. While there is no shortage of suspects, the details of the crime leave Oldroyd and Carter stumped. 

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.

When a young girl is found dead in the mountains outside Timber Creek, lifelong resident Officer Mattie Cobb and her partner, K-9 police dog Robo, are assigned to the case that has rocked the small Colorado town. With the help of Cole Walker, a local veterinarian and single father, Mattie and Robo must track down the truth before it claims another victim. But the more Mattie investigates, the more she realizes how many secrets her town holds. And the key may be Cole's daughter, who knows more than she's saying.

When a young red-haired woman is found brutally murdered in downtown Chicago, one detail stands out: the red lipstick encircling her wrists and ankles. Detective Harriet Foster is on the case, even though she’s still grieving the sudden death of her partner. As a Black woman in a male-dominated department, Foster anticipates a rocky road ahead acclimating to a new team—and building trust with her new partner isn’t coming easily. After another victim turns up with the same lipstick markings, Foster suspects she’s looking for a serial killer. 

Corey Douglas and his K-9 partner, Simon Garfunkel, have recently retired from the police force. Not ready to give up the life yet, they come up with a proposal for fellow former cop, Laurie Carpenter, and her investigating partner, Marcus. They call themselves the K Team, in honor of Simon. Their first job as private investigators comes to them from Judge Henry Henderson, who's known as a very tough but fair judge, and they've all come up against him in court at one time or another. Though it's hard to believe, Judge Henderson is being blackmailed and extorted.

Countersurveillance expert Devin Gray is unwittingly thrown headfirst into dangerous new territory after the death of his mother. Helen Gray, a paranoid and disgraced former CIA officer, believed she was on the verge of preventing a national catastrophe - a mission worth dying for. Others, including Devin, believe she was chasing delusions. Until he finds what she left behind.