Three letters

Ruth Denton is a fiery woman, with an appetite for other women's husbands. Married to Tom, they have a one child, a son called Casey. Musically talented and with a sensitive nature, Casey's young life is blighted by his mother's cruel and unpredictable behaviour. For some reason, unbeknown to her husband, Ruth has a vicious and unnatural contempt for the boy which borders on hatred. Quiet and hard-working Tom has long suspected his wife of having sordid affairs, but to keep the peace has chosen to turn a blind eye. But when, quite unexpectedly, Tom receives two bits of news, his world is…