The Chateau by Jaclyn Goldis

"A dream girls trip to a luxurious French chateau devolves into a deadly nightmare of secrets and murder in this stylish, twisty thriller for fans of Lucy Foley, Ruth Ware, and Lisa Jewell."

If you're looking for a twisty thriller, a great locked room mystery in a creepy mansion in France, best friends with so many secrets and drama, and murder... grab a snack and settle in because you won't want to put down this wild ride of a thriller. I absolutely loved this one!