John Parlour and Jo Weller form a credit union but John's predatory lending scheme threatens both the poor residents of a London council estate and their own business.
John Parlour is a credit agent for a catalogue company preying on the poor, Jo Weller is one of his best customers. After nearly losing his life John reforms his ways and forms a credit union with Jo and his other customers. It isn't long before John's ambitions and Jo's guilty secret threaten to destroy all they had worked for and shared together.