When struggling veteran Jerry Burton and his sister Joanna moved to the quiet village of Lymstock to help Jerry recover from his claimed motorcycle accident injuries, they only looked forward to the weariness and boredom of the country. However, to their great surprise, they found themselves caught up in scandals and secrets; Someone is sending malicious letters to residents. A local politician has committed suicide due to these letters, and shortly thereafter, local gossip Mona Symington also committed suicide after receiving a letter. But when the writer clearly resorted to murder, Jerry found his curiosity aroused, and he was not the only one; Miss Jane Marple is also in Lymstock, and she believes that someone should have investigated this unpleasant matter a long time ago.
