Summer has come to Windermere, where Persimmon “Simmy” Brown runs her own florist shop. But the shop is struggling for money, so a contract to provide floral displays for a hotel in Hawkshead couldn’t have arrived at a better moment. However, Simmy’s association with the hotel soon turns sinister when she finds a body in the lake. To make matters worse, her friend, Ben Harkness, is now missing and thought to be kidnapped. With many suspicious characters bustling in and out of the hotel, while simultaneously trying to cope with her father’s encroaching dementia, solving the puzzle seems a gruelling challenge, but Simmy is compelled to uncover the truth…