Shattered by her husband's infidelities after 25 years of marriage, Sam Collins is plagued by constant fear and loneliness, reliving the tragic death of her parents and the betrayal by the man she loved. She leaves Seattle, seeking relief from the relentless darkness that has swallowed her. With only her dog for companionship, she sets out to live in her vacation home on San Juan Island.

Private investigator Milo Rathkey returns to the shores of Lake Superior and his boyhood home Lakesong, where his mother had been the cook. This time around, he co-owns the estate with his benefactor's son Sutherland McKnight. Milo moves from following wayward spouses to solving murders. Sutherland refers to Milo's unusual way of thinking as mind lint, but it works.

In the farming town of Riverside in Washington, Toby Fuller is feeling more alone than ever. Nothing Toby did was ever good enough for his father, but he never expected his father to leave, to abandon him and his mother forever. He loses hope, until a scruffy golden retriever called Buddy follows him home from school. Though he’s struggling to walk, Buddy matches Toby step for step, never taking his eyes off him, as if Toby is all he needs in the world. And from that day on Buddy never leaves Toby’s side. 

The peace of a Midlands village is upset when local businessman Harry Bowers doesn’t return from choir practice. More concerned than the man’s own wife, it would seem, investigating officer Detective Sergeant Sunita Roy becomes convinced he has been done away with. But there is no trace of the man, just a litany of evidence of an ailing marriage and a nose-diving business venture. In charge of her first serious case, DS Roy will struggle to win the respect of her colleagues—in particular her Brummie boss, DCI Gavin Roscoe. 

Cat Wright can almost handle dogs, but she finds the delicate balance bitterly disrupted when two opposing Cavalier King Charles Spaniels disappear and the mayor’s wife is murdered.

Detective Sam Helsdown hasn’t seen his daughter Zoe in two years and he’s excited and more than a little nervous to be at the airport picking her up for a visit. She’s 10 years old and has flown on her own for the first time. Flight BA631 from Athens has already landed and soon a trickle of people begins entering Arrivals. Among them is a little girl who runs towards him, head down, and throws herself into his arms saying ‘Daddy!’. But then he looks at her properly. This is not Zoe. This is not his daughter.

In the quaint town of Hart's Ridge, Deputy Taylor Gray is a force to be reckoned with. From clawing her way out of poverty and foster care to achieving her dream of being in law enforcement, Taylor is determined to make a difference in her community. When a five-year-old girl named Molly walks into a gas station alone and barely speaking, Taylor's determination is put to the test. As she delves deeper into the investigation, Taylor discovers that even the most idyllic towns have their secrets. But this time, the stakes are higher than ever before.

Flower shop owner Ellie McEwan is driving home late one frosty November night when a shadowy figure leaps into the road out of nowhere. Ellie swerves to avoid him — and slams head-on into the crash barrier. Days later, Ellie wakes up in hospital — and notices there’s something different. Everyone she looks at — the doctor, the nurse, her friend Carole — is surrounded by a coloured aura. Her near-death experience seems to have given her a new ability. And now Ellie must use her new-found gift to catch a killer.

FBI Agent Jo Pullinger arrives in Seattle, Washington. She is grateful to leave behind her old life. One that involved having a transplant of a killer’s heart. When a wealthy family is murdered in their mansion, the daughter’s boyfriend is taken into custody. He was found at the scene of the crime, cradling the daughter’s body, with the murder weapon at his side. Jo’s instincts tell her the boyfriend is not guilty, even though, all the evidence is stacked against him.

Equipped with the resources of the Bureau at her disposal, new FBI agent Mia Storm is excited to start her career and make a difference. When she is assigned to the agency headquarters in Hawaii, she couldn’t be more thrilled.