The Reluctant Ronin — James Melville

When a beautiful foreign executive is found murdered carrying a photograph of Otani's daughter, son-in-law, and grandchild in her purse, no one is more surprised than the illustrious inspector himself. What could this gaijin want with his family? And who would want her dead? Ever the professional, Otani excuses himself from the investigation but still manages to direct operations with a few well placed questions to his strait laced staff. Naturally, the can't help wondering if Otani has personal information he's not sharing. But when his son-in-law suddenly disappears, the whole team hits high gear to find him, following an unholy trail through the underworld and the spirit world where passion comes at a high price.