Dead Men Don't Lye (Book 1 in the Soapmaking Mysteries)

Ben Perkins is the family and business troubleshooter for Where There's Soap, a family-owned boutique and small scale production shop the creates and sells all things Soap related. When one of the store's suppliers is doused with Lye and dies, Ben soon finds out that one of his sisters was dating the man, and worse yet, it had just ended badly.