During National Wildflower Week, Normal is abuzz with nature enthusiasts and botanists. But the festivities take a dark turn when a renowned botanist known for her groundbreaking research is found dead under the moonlit sky. The tranquil celebration is shattered, and the town is gripped with shock and disbelief.

The trails may have gone cold, but Mae and her friends are hot on the case. From a land developer with a not-so-clear conservation plan to an assistant whose obsession takes a dangerous turn, the list of suspects is as diverse as the town's flora. Mae delves into a thicket of hidden motives and secrets, discovering that danger in Normal can sprout up unexpectedly.

Navigating through a labyrinth of environmental politics and hidden agendas, the Laundry Club Ladies are determined to expose the truth and bring justice. But in Normal, where the extraordinary often lurks beneath the surface, can Mae piece together the puzzle before the killer strikes again?