Sydney Detective August Shaw has spent the last decade of work solving cold cases. His work is his entire life, and he's convinced a string of unsolved cold-case suicides are linked to what could be Australia's worst ever serial killer. Problem is, no one believes him. Senior Constable Jacob Porter loves his life in the small town of Tallowwood in northern New South Wales. When human remains are found in the camping grounds at Tallowwood Reserve, Jake's new case turns out to be linked to August's cold cases, and Jake agrees they're not suicides at all.

Special Agent Ty Grady is pretty sure he’s about to get fired. His last perp skipped town before he could make an arrest, leaving him with a lot of means and precious few ends. When he’s called into the boss’s office, he expects the worst. And he isn’t exactly wrong. Chained to a desk in cybercrimes, Special Agent Zane Garrett dots his i’s and crosses his t’s. He doesn’t have much of a choice in the matter—his record can’t handle another black mark. When he learns he’s getting reassigned, he doesn’t miss the ironic pronunciation on “promotion.” Wherever he’s going, it’s nowhere good.

SSA Rain Christiansen used to be the agency's golden boy. It just takes one moment of weakness, one tiny paranormal sighting, and all of a sudden, he's the agency's embarrassment. His boss gives him one last chance to redeem himself - go down to Brickell Bay, play nice with the local police, and leave the ghost sightings behind. Rain is determined to do exactly that, even if it kills him. Cold-case Detective Daniel McKenna's latest investigation is going nowhere fast. Daniel is glad to finally have the FBI help his department requested, even if it does come in the form of his ex.

Nerdy, introverted genius lepidopterist, Lawson Gale, is an expert on butterflies. He finds himself in a small town in Tasmania on a quest from an old professor to find an elusive species that may or may not even exist. Local Parks and Wildlife officer, Jack Brighton, is an ordinary guy who loves his life in the sleepy town of Scottsdale. Along with his Border collie dog, Rosemary, his job, and good friends, he has enough to keep from being lonely.

Caroline’s mattress had nothing to do with her untimely death at the age of 28—this, she wants Tempur-Pedic’s market research representative to know. But as she reflects on her first ever mattress purchase and their interview progresses, Caroline dives into the circumstances and decisions that led her and Nicholas—her boyfriend, 10 years her senior and prone to sleeping on the floor—to that particular bed in that particular shopping plaza.