By day, she investigates fires. By night, she starts them.

"A scorcher of a debut." —Sarah Pinborough, New York Times bestselling author of Behind Her Eyes

Dr. Catherine Jenkins, aka Red, is an accomplished fire investigator. Tasked with establishing the origins of deadly blazes, she understands fire like no one else. Because Red has a secret: she’s a serial arsonist.

It’s a powerful addiction born from painful memories, but she can keep the compulsion in check...most of the time. And if she slips up, she’s always in a position to cover her tracks. But everything changes when a long-buried trauma bursts from the haze of Red’s past, and in desperate need of release, she burns down an empty, derelict house.

The next day, she’s called to the scene by the police, led by the indomitable detective Lina Karim. It’s simple, routine work—until a body is found. Who is the victim? Did Red cause their death? And does someone know more about Red than they should?

As Red and Lina get closer to the truth, only one thing is certain: someone is about to get burned.