No one ever thinks the unthinkable will happen... When Grace Hughes’s family was murdered outside their suburban home the police told her it was a senseless tragedy. Just another madman with a gun. Happens every day in America. One year later and still overwhelmed by grief, Grace struggles to make sense of her shattered world. Then Grace meets two abandoned children in desperate need of help and she discovers a newfound sense of purpose. But as Grace starts to heal, secrets about her husband’s past unfold.

Detective Mary Joe Court sleeps with a shotgun beside her bed and a lovable bull mastiff at her feet. For the past 12 years, she’s hidden from a nightmarish past, but with every passing day, her scars fade, and her heart grows lighter. Now, for the first time in her life, she looks forward to her future. She’s happy. Then she finds the body. Someone shot the victim in her chest and left her to die in a cheap motel. Joe knew her well. She grew up with her. They were sisters, of a sort.

As a former smokejumper, arson investigator Bri Tucker knows her way around fires. But after a mysterious blaze takes the life of a former colleague, Bri inherits a curious puzzle from him that raises questions about several fiery deaths. Someone, however, doesn’t want her picking up where he left off in search of answers. When she teams up with ATF Special Agent Marc Davis to solve the puzzle, the case heats up—as does the attraction between them.

It’s Christmas Eve and Stella Hansen is broke. She is so broke that despite working two jobs, she can’t even afford a present for her husband on their first Christmas as man and wife. But then a mysterious storekeeper at a pawn shop offers Stella an intriguing trade. Stella wants more than anything to buy her husband the Christmas gift of his dreams. But will it come at a terrible price?

Detective Kara Quinn, on leave from the LAPD, is on an early morning jog in her hometown of Liberty Lake when she comes upon the body of a young nurse. The manner of death shows a pattern of highly controlled rage. Meanwhile in DC, FBI Special Agent Mathias Costa is staffing his newly minted Mobile Response Team. Word reaches Matt that the Liberty Lake murder fits the profile of the compulsive Triple Killer. It will be the first case for the MRT. This time, they have a chance to stop this zealous, if elusive, killer before he strikes again.