Following a personal tragedy, florist Persimmon 'Simmy' Brown has moved to the beautiful region of the Lake District to be nearer her charismatic parents. Things are going well, with her latest flower arrangements praised and Simmy content to lose herself in her work. But the peace she has found is shattered when, at the wedding of a millionaire's daughter, the bride's brother is found brutally murdered in the lake. As the florist of the wedding and one of the last people to talk to Mark Baxter alive, Simmy gradually becomes involved with the grief-ridden and angry relatives.