Private Nursing Agency sent a nurse Anne Harrison to a house of a famous writer Kitty Blakemore. Nobody seriously considered that she is ill, the woman had a reputation like hypochondriac. The nurse Anne notices after arriving at the house, that people surrounded Mrs Blackmore don't like her at all, because woman has a terrible temper. Mrs Blackmore doesn't have strong feelings for them either. Only person, who she loves from all her heart is her nephew, he is a local vicar. The Reverend John Palmer visits his aunt very often and always brings her a chocolate. Mrs Blakemore is sure, that somebody is poisoning her and tells about it to her new nurse. But nobody believes her and in vain. One morning they finds her dead.