A murder mystery unfolds in the quaint English village of Shustoke in Murder at Shustoke Castle.  As Detective René Lesage rushes towards Mrs Murry's study. He observes the body, and discovers a dictaphone hidden in a secret compartment of Mrs. Murry's desk. While Dr. Smith perceived an accidental death, Lesage perceived a deliberate act. Lesage quickly confirms his suspicion that Mrs. Murry's death was not an accident, but rather, a carefully planned murder. Are the recordings of the Dictaphone a silent witness to the events, laying the groundwork for unraveling the killer's identity?