In the midst of bookstore owner Kate Shannon's growing feelings for a much younger Nikki Harris, a fatal fire in an insurance office across the street adds another challenge—and one that could be deadly. Subsequent fires make life hot as they rush against time to unravel the mystery surrounding the death of Sam Madison, all the while dealing with their newfound attraction. Will the unexpected sparks between these two very different women blind them to the true identity of the arsonist? Or will they be able to stop a killer before anything else goes up in flames?