It's the late 1940s in Liverpool. Ellen Butterworth's ambitious sweetheart leaves the Navy and comes ashore. An urgent telegram from Ellen's sister, Jeanette, interrupts their wedding plans and Ellen returns to her family's home in the Yorkshire Dales. Unexpectedly, Brian follows Ellen. Surprised and overjoyed, she takes him to meet her mother and sister -- But from the moment Ellen's vivacious younger sister appears in the room, Brian isn't able to take his eyes from Jeanette . . .