They say that beauty is only skin deep.

Which is all it takes for a good poison to work its charms...

After Rosie Casket inherits an old inn, she drains all her money to keep it afloat. Worried that she'll go bankrupt before she gets her first guest, she begs the universe to send her customers.

Unfortunately, the young guest who arrives is not the relief that Rosie hoped for. In the young woman's dying grasp, is the first page of an elaborate puzzle, one tailor-made for Rosie.

And the woman's lips are a shocking shade of red-even in death.

To make matters worse, there's a new man-eater in town, a powerful woman who has ensnared Trooper Matt Mettle in her deceitful web, a woman who leaves Rosie wondering if she and Mettle have any kind of future together.

Desperate to keep the town from branding her fledgling business as a murder house and forced to work alone, can Rosie get to the bottom of the red lipstick before she loses everything?

Or will more single women end up on the autopsy table?