Savannah Blues by Mary Kay Andrews.
Here's the story, in short: Savannah antique picker Weezie Foley's life is coming apart at the seams. After her golden-boy husband ditches her for the much younger, much more ruthless Caroline DeSantos, Weezie is living in the garage behind the home they once shared. Now Weezie's only hope to get her life back on track is to score big at the estate sale of the century--a historic plantation house that's about to be bulldozed to make way for a paper mill. Snatching up and reselling a rare handmade cupboard from the property will give her the money to finally realize her lifelong dream of opening her own antique shop. But there's just one hitch to this plan. Before the sale can begin, Caroline is found dead inside the house, and the cupboard turns up missing from the scene of the crime.
Suddenly Weezie finds herself the prime suspect in the murder investigation, and she's mixed up with all kinds of mysterious people (including a sexy chef from her past who's recently returned to town and is clearly hiding something). If she's going to stay out of jail and get into business, she'll have to hunt down answers to some questions. Who killed Caroline? Who took the vanished cupboard? And what's the story with this guy who's determined to get close to her? With plenty of help from her friends and family, Weezie is on a mission to uncover some of Savannah's biggest secrets.
This is really a mystery, a romance, and a story about starting over on your own terms after life deals you a bad hand--all rolled into one. Andrews is a pro at weaving tightly plotted tales populated with vibrant characters, so this book is easy to devour. If you're looking for a light, engrossing read to spend a weekend with, look no further.