In the film, bride-to-be Dolly (Jones) is hiding in her bedroom on her bitterly cold wedding morning, swigging a bottle of rum, and dreaming of the romantic summer she spent with Joseph (Treadaway). Long-lost cousins and eccentric aunts are arriving at the house every hour, and the downstairs living rooms are buzzing with speculation as to the bride's whereabouts. Exasperated by her daughter's absence, Dolly's scatterbrained mother Hetty (McGovern) is at her wit's end, scurrying around the house trying to quell the relatives' suspicions. Hetty has perfected all of the day's arrangements, but her plans can't prepare everyone for the one arrival she was not expecting: Joseph himself.