When a security expert is murdered, his wife will stop at nothing to find the killer—even as she becomes suspect No. 1.

Jacintha “Jack” Cross is a “penetration tester”: She’s the boots-on-the-ground person for testing out security systems, while her husband, Gabe, does the same for cybersecurity. Leaving a job one night, Jack is picked up by the police—an occupational hazard—and when she returns home, she finds Gabe’s body, throat slit. In shock, Jack reports the murder, talks to the police again, and goes to stay with her older sister, Helena Wick, for a day. When she’s asked to return to the station for a few more questions, Jack quickly realizes that she’s under suspicion—and so she goes on the run. With the help of her sister and Cole Garrick, Gabe’s oldest friend, she’s able to elude capture and begin her own investigation, determined to find her husband’s killer. Apparently, Gabe had found a “zero-day exploit,” a backdoor vulnerability, in a popular app, one that could be worth a lot of money to governments and bad actors. Ware has often highlighted technology as a malignant, uncontrollable force in her novels, and it’s frequently at odds with her luxurious, somewhat timeless settings. But in this novel, tech is front and center. Despite the contemporary trappings, though, the story is still a familiar one: It’s The Fugitive if the main characters were women. There’s plenty of excitement—chases, break-ins, shady bitcoin deals, an impending medical emergency—but the pool of characters is too small to leave much suspense about the mystery of Gabe’s death. Jack is a strong and fearless heroine, and Ware is always a master of setting and atmosphere, but the great reveal makes one wonder: Was it all worth it? Or more accurately, couldn’t Jack have figured this out much faster? Did it all have to come down to the poetic moment when she has nothing left?

Lots of adrenaline-driven action, a departure from Ware’s usual wire-taut mysteries.