Jérôme Morval, a man whose passion for art was matched only by his passion for women, has been found dead in the stream that runs through the gardens of Giverny. In his pocket is a postcard of Monet's Water Lilies with the words: Eleven years old. Happy Birthday.Entangled in the mystery are three women: a young painting prodigy, the seductive schoolteacher and an old widow who watches over the village from a mill by the stream. All three share a secret. But what do they know about Morval's corpse - and what is the connection to the mysterious, rumoured painting of Black Water Lilies?