Forbidden

The thriller is set in Blackpool, where trained chemist Jim Harding makes a living peddling potions and medicines from a fairground stall. He finds himself attracted to the kinder working-class Jane Thompson, who sells candyfloss and ice cream at an adjacent stall on the fairground. Jim does not reveal to Jane that he is married as the two fall in love and begin an affair. Diana finds out about Jim's affair and visits Jane at home, trying to convince her that Jim is a serial philanderer. Jim then faces up to Diana and demands a divorce, which she refuses out of hand.