In the dark woods of Olive Park, in the hills above Sacramento, a California Highway Patrol officer stumbles over a gnarled branch. But it isn’t a branch. It is an arm. Reaching up from a shallow grave. And clutched in the small, desperate hand is a single quarter. So begins one of the most exhaustive investigations in California history. Yet even with their massive resources, State and Federal authorities fail to find any trace of the killer. After two long years, the case goes cold.

Private Investigator Mallory Dimante has no time for a pro-bono cold case. Focused on developing the detective firm she’s building with her partner, Jake Steiner, she needs work that can keep them and their new Seattle houseboat afloat. But she can’t say no when she comes face-to-face with the victim of a devastating acid attack. 

A phone rings at 5:07 a.m. in a Seattle houseboat…but to a number that shouldn’t exist. A man, wire-bound to a kitchen chair, is discovered in the ruins of a burned-out house. A woman, sexually abused when she was a young girl, names a presidential candidate as her abuser...and a naïve landscape gardener, relentlessly pursued by hit men, holds the key to it all. What started as a straightforward missing person case for private investigators Mallory Dimante and Jake Steiner now has them racing to work out the connection between these events.

When Bobby McGowan discovers an old photo album belonging to his mother—who was murdered twenty years ago—he becomes convinced that one of the photos holds the key to finally solving her murder. Despite the protests of his father and sister, Bobby marches forward with the investigation. He builds a website dedicated to the murder of his mother, and receives a message from the purported killer. The game is on.

Thomas Austin was once a prominent NYPD detective, known for locking up a psychopathic serial killer dubbed "The Holiday Baby Butcher". Now retired in a small beach town in the Pacific Northwest, Austin runs a little café, trying to overcome the loss of his wife, a DA who was gunned down only one year ago.

A known serial killer is once again taking lives in Chicago. Bodies drained of blood are being strewn across the city. For former Tampa homicide sergeant, Hank Rawlings, tracking down the man responsible for the killings becomes his first assignment at his new position, agent in the FBI's homicide division of the serial crimes unit. Almost before the ink dries on the new job's acceptance papers, Hank finds himself in Chicago, knee-deep in an investigation with a mounting body count.

Quint Adler is a small town crime reporter with bigger aspirations. Stuck in a hospital bed on his 40th birthday, he overhears a conversation that arouses his suspicions. Sensing an opportunity, Quint starts his own investigation, bypassing local law enforcement in the process. His inquiries lead him to the scene of a savage murder. And then a second one, even more barbaric in nature.

Rumors have swirled around Jake Cashen his whole life. Is he crazy like his father? Is it true they booted him out of the F.B.I. right after he cracked a career-making RICO case? Was he dirty? Only Jake knows, and he’s not telling. He came back to his tiny hometown at the foot of Ohio’s Blackhand Hills to serve as a deputy sheriff. He hopes to punch a clock and keep his head down until retirement. It was a solid plan—until someone put a bullet in the head of a revered county judge.

When a key witness in an organized crime trial turns up dead in his kitchen with liar and the number two scrawled on his forehead, the FBI assumes the murder was a hit to silence him. Then the calls start coming in - more victims with similar markings and no connection to the mob. As agents Victoria Heslin and Dante Rivera struggle to catch a break in the case, they receive a series of cryptic personal messages from the killer, complicating the investigation.

I open the front door and there’s Amy, smiling sweetly and ready to help. She’s been a lifesaver since Jon and I moved here–from walking the dog to picking up my little son Teddy from nursery last minute. I’m so lucky we met in the playground the first day we arrived. Amy is more than just a good friend. My only friend, really. Whenever Amy and Jon exchange glances I’m sure it seems like they’ve met before, even though Jon swears they haven’t. But then again Jon recognises lots of people from his childhood round here without truly knowing them.

Starting a new life in Snowdonia was always DI Ruth Hunter's dream. Until a twisted killer turned it into her worst nightmare. Detective Inspector Ruth Hunter lives with the pain of her partner’s mysterious and unsolved disappearance. About to hit 50, the veteran police officer trades in the crime-ridden streets of London for a more peaceful life in rural North Wales. But Ruth has barely settled into her new position in North Wales Police, when the body of a brutally murdered woman is discovered...with strange symbols carved into her skin.

A lifeless girl slips into the river, cold and crumpled. Her body washes away with the rain. Her killer remains a mystery. Sheriff Elven Hallie has been longing for a new case that would add some excitement to his small-town life. But a dead girl wasn’t what he expected. On the last murder case he worked, he was just a deputy with an experienced Sheriff to guide him and they were looking for an outsider. This time, he’s in charge, and the killer is part of their community.

While investigating Blackston’s recent activities, FBI Agent Jeremy Winter stumbles upon a string of missing persons within state parks. Unable to convince his boss that Blackston’s disappearance is anything other than a lost hiker, Winter joins forces with a local police officer to continue the search. As the clues mount, a dark figure from Jeremy’s past emerges with an ultimatum - one that could force him out of the bureau. Afraid that his girlfriend, fellow agent Maggie Keeley, will be dragged into a high-stakes political game, he delays his decision.

Gilman James comes home from Iraq - the last of three childhood friends to return. His brothers-in-arms are mere shadows of their former selves. Gil, unmarked, determines to take care of them. But how far should a man go for the people he loves? Stepping across the line between right and wrong, Gil finds himself stranded in the Texan desert as a bank heist he's planned goes horribly wrong. Pursued into the badlands by US Marshal John Whicher, a moment of violent reckoning is set in train. What makes an outlaw? Marshal John Whicher thinks he knows.

Matt Walker was a chancer; he’d spent his entire profession chasing the next job. His personal life took on a similar mantra. Life was slowly drifting him by. Until one evening, in a hotel bar, following a fortuitous meeting with the quiet and unassuming Julia. She knew of an opportunity that would be the perfect fit for Matt; one he simply couldn’t let go. Not only did the subsequent interview provide him his with dream job; it would also be where he met the love of his life. Matt and Amelia spent each day working hand-in-hand, and every evening in premarital bliss.