Grieving the death of his wife, private investigator Mark Novak reluctantly accepts a case from a suspected murderer who may or may not be innocent.

While investigating a case, Detective Constable Cat Kinsella and her partner Luigi Parnell discover a connection to a notorious serial killer who was apprehended years earlier.

A social worker turned true crime podcaster investigates a decades-old serial killer cold case only to unwittingly create new victims.

When his lead-actress daughter is wrongly accused of poisoning a fading, drama-prone actor during a local stage production, Charlie teams up with feline sidekick, Diesel, to identify the true killer.

Seven years after the mysterious death of her best friend, Aubrey, Maya comes across a recent YouTube video in which a young woman dies in front of the same man Aubrey did, leading her back to a New England cabin to finally uncover a truth that could save her.

Investigating a cold case while recovering from a near-fatal injury, Simon Serrailler finds his personal and professional lives intertwining in unexpected ways when his constable brother-in-law suffers a setback at the same time an arsonist begins a deadly rampage.

Lew Ferris, the newly elected sherriff of McBride County, discovers an eerie parallel in the recent tragic drowning of a teenage girl to a cold case that has remained unsolved for thirty years.

When library director Lindsey Norris arrives at the Dorchester family’s estate to collect books left to the library, she instead finds a skeleton linked to a missing person’s case from 1989, and sets out to solve this mystery and throw the book at a killer who thought they got away with murder.

"Senior year at Ellingham Academy for Stevie Bell isn't going well. With the cold case of the century solved, Stevie is adrift. There is nothing to distract her from the questions pinging around her brain--questions about college, love, and life in general. Relief comes when David invites Stevie and her friends to join him for study abroad, and his new friend Izzy introduces her to a double-murder cold case. In 1995, nine friends from Cambridge University...

When Stevie Bell is finally able to return to Ellingham Academy after identifying the culprit in the murder of a classmate, she begins to wonder if the case was really resolved and attempts to uncover the truth about the school's founder.