Bing has been fascinated with gambling since he was a child. Bernadette was his childhood sweetheart and, in spite of his addiction, they have become a couple.
The family is completed by their eight-year-old son, Joe, and Bing's father, George.
The relationship between grandson and grandad is a golden one – based on absolute trust and mutual affection.
But Bing's gambling spirals out of control, his losses reach unsustainable levels, and the only thing left to lose is his wife and son.