The Salaryman's Wife by Sujata Massey

Set against the vibrant backdrop of Japan, this mystery novel follows Rei Shimura, a young Japanese-American antiques dealer, as she becomes embroiled in a murder investigation during a New Year's vacation in the snowy mountains. When a fellow tourist, a salaryman's wife, is found dead, Rei's curiosity and keen sense of justice propel her into a web of secrets and cultural intricacies. As she navigates the complexities of Japanese society and her own identity, Rei uncovers hidden truths that challenge her perceptions and put her own life at risk.

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