Celebrity florist Octavia Eden, diagnosed with a terminal illness, returns from London to native Kembleford, moving into a manor with her daughter Lizzy Eden and niece Noele Scharma. She sets both a series of tasks to determine who will inherit her firm and the estate. At such event, thrown for he neighborhood, the manor's previous owner John Mulch, who earlier rudely dragged his wife Marjorie back home, dies of aconite poisoning. John was an embittered grump and Sullivan arrests his wife, who grows aconite in her back garden. Believing her innocent, Brown probes why Octavia Eden had left Kembleford heartbroken 45 years previously, thereby inadvertently getting Brenda Palmer arrested for breaking and entering. The daughter and niece call a truce and complete the last task together to the delight of the dying Octavia Eden, knowing they had more in common than she had told them. Their past and link with the Mulches proves the key.
—KGF Vissers