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. While observing the body, he also 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 one. Are the recordings of the Dictaphone a silent witness to the events, laying the groundwork for unraveling the killer's identity?