Valentine's Day is fast approaching and Persimmon 'Simmy' Brown's flower shop near Lake Windermere is doing good business. But when Simmy receives a string of anonymous delivery orders, each one causing their recipient great distress, she begins to suspect that the messages they contain mask a sinister intent. When one of the recipients disappears, it would seem that her worst fears have been confirmed. Simmy finds herself caught up in a web of deception, blackmail and murder. It seems that Simmy Brown faces her most puzzling, and perhaps her most dangerous, case yet.