In Shoot the Breeze, the first book of the series, a young woman turns up dead along the Mississippi River, and rising-star Detective Kate Rosetti quickly realizes it’s the work of a notorious cross-country serial killer. In the next book, Riddle Me This, Kate gets the news that infamous serial killer Ramone Wilkes has escaped from prison, and she knows that he's on his way to her.

When Toru Narazaki's girlfriend, Ryoko, disappears, he tries to track her down, despite the warnings of a private detective he's hired to find her. Ryoko's past is shrouded in mystery, but the one concrete clue leads him to a compound in the heart of Tokyo, with a group that seems to be a cult led by a charismatic guru. Narazaki plunges into the secretive world of the cult, ready to expose himself to any of the guru's brainwashing tactics if it means he can learn the truth about Ryoko. But the cult isn't what he expected, and he has no idea of the bubbling violence beneath its surface.

Quinn Alexander has committed an unthinkable crime. To avoid spending her life in prison, Quinn makes a run for it. She leaves behind her home, her job, and her family. She grabs her passport and heads for the northern border before the police can discover what she's done. But when an unexpected snowstorm forces her off the road, Quinn must take refuge at the broken-down, isolated Baxter Motel. The handsome and kindly owner, Nick Baxter, is only too happy to offer her a cheap room for the night. Unfortunately, the Baxter Motel isn't the quiet safe haven it seemed to be.

Yuki Hirano is just out of high school when his parents enroll him, against his will, in a forestry training program in the remote mountain village of Kamusari. No phone, no internet, no shopping. Just a small, inviting community where the most common expression is “take it easy.” At first, Yuki is exhausted, fumbles with the tools, asks silly questions, and feels like an outcast. Kamusari is the last place a city boy from Yokohama wants to spend a year of his life. But as resistant as he might be, the scent of the cedars and the staggering beauty of the region have a pull.

Erika Cass has a perfect family and a perfect life. Until the evening when two detectives show up at her front door. A high school girl has vanished from Erika's quiet suburban neighborhood. The police suspect the worst - murder. And Erika's teenage son, Liam, was the last person to see the girl alive. Erika has always sensed something dark and disturbed in her seemingly perfect older child. She wants to believe he's innocent, but as the evidence mounts, she can't deny the truth - Liam may have done the unthinkable.