Based on Erich Kästner's famous book about two similar-looking girls who meet at summer camp, realize that they're twin sisters, and plan to switch homes for a while.
Did You Know?
adult female train passenger
[to Luise who steps with her shoes on a seat in the train to get her luggage
Hey! Next time you step on a seat, put a newspaper under your shoes.
That wouldn't make me any taller.
Version of The Parent Trap