Lancashire mill-girls Jenny Hawthorne and Mary Hollins go on holiday to Blackpool during the annual wakes week in their hometown of Hindle. They run into Alan Jeffcote, the son of the owner of the mill in which they work, who has also traveled to Blackpool with a group of friends while his fiancée is detained on business in London. Jenny and Alan hit it off immediately, and he persuades her to leave Blackpool to spend the week with him at Llandudno in North Wales. To cover her tracks, Jenny leaves a postcard with Mary, asking her to send it to her parents later in the week. She and Alan leave their friends and set off for Wales. Shortly afterwards, Mary is involved in a serious road accident and is killed. Her possessions are returned to Hindle and the unmailed postcard is found in her luggage. Jenny's parents are already suspicious and concerned by the fact that Jenny has not returned to Hindle as they would have expected in view of such a tragic turn to her holiday, and the discovery of the postcard increases their fears. Jenny returns at the end of the week. Her parents ask about her holiday, and allow her to dig a hole for herself as her fictitious account shows she is unaware of Mary's death and has clearly not spent the week in Blackpool. When confronted with the truth, Jenny admits to where she has been, and with whom, and defiantly refuses to be made to feel guilty or immoral. The Hawthornes decide that they will have to confront the Jeffcotes with their son's unacceptable behaviour. Mrs. Hawthorne's anger is tempered by the fact that she believes the situation may be turned to financial advantage. Hawthorne feels some trepidation, as he and Jeffcote have been friends since childhood and have remained on good terms despite Jeffcote's rise to social prominence. To the surprise of the Hawthornes, Jeffcote agrees that in the circumstances Alan must be made to marry Jenny to prevent a scandal. Mrs. Jeffcote is less convinced, anticipating the ruin of Alan's reputation and business prospects. A meeting is convened between all the interested parties. Jenny and Alan remain silent while their parents try to thrash out suitable arrangements, and Mrs. Hawthorne and Mrs. Jeffcote become involved in an undignified shouting match. Jenny and Alan leave to talk alone. She tells him that she has no designs on his money and has no interest in marrying him. She then announces her decision to the incredulous parents, adding that Alan was no more to blame than she was, for both of them it was just a "little fling" about which neither need feel guilty, and that a woman has just as much right as a man to enjoy a brief sexual flirtation with no strings attached. Alan returns to his fiancée, while Jenny confidently leaves home and her mother's fury for an independent life without interference.
