Eight-year-old Casey's mother Ruth is a cruel woman, with a weakness for other women's husbands. Casey's father is gentle and hard-working and, though Tom Denton has long suspected his wife of having sordid affairs, he has chosen to turn a blind eye to keep the peace. But then,Tom's world is cruelly shattered when he receives two bits of devastating news. A broken man,Tom realises that from now on their lives must change, forever. But, unbeknown to Casey, there are three letters penned by his father, that may just change his destiny.