Welsh farmer's son Glyn is drawn into a glamorous but dangerous world when film star Nia Barry and her son Luke move into the old mansion down the hill in the summer of '69. He discovers jazz, art and cocktails and soon realises he's falling for Luke's new girlfriend Sian. Secrets from Nia's past begin to threaten the close relationships they have built up and a tragic death brings them to an end when Nia moves back to New York. Years later Glyn is a journalist in London. He interviews Nia and discovers the most terrible secret of them all. He must now try to come to terms with what happened...