This is the second book in the Dales Detective Agency series.
Samson O'Brien didn't really believe Alice Shepherd, a resident of the Fellside Court Retirement Home, when she said that someone was trying to kill her. She seemed to be a bit confused, but then a few days later she was found dead. He then has to wonder if there really was something true in her suspicions and it wasn't just confusion of an elderly woman.
Then others at Fellside have accidents or unexpected deaths and Samson asks his landlady Delilah to help him to investigate.
Together they investigate and set up a stakeout. They also try to find a missing ram for a local farmer.