En el año 2038, las multinacionales se han adueñado del Universo; sin embargo, continúa habiendo guerras por el control de planetas lejanos, donde los robots controlan los productos químicos, que son ahora la única fuente de energía para volver a la Tierra. La crisis se agudiza en la estación lunar 44.
El marchante americano Tom Ripley (Hopper) intenta poner a prueba la integridad de Jonatham Zimmermann, un humilde fabricante de marcos (Bruno Ganz) que padece una enfermedad terminal. Ripley le presenta a un gánster que le ofrece mucho dinero a cambio de que trabaje para él como asesino a sueldo. En un principio rechaza la oferta, pero, al pensar en el precario futuro que espera a su mujer y a su hijo después de su muerte, acaba aceptando el trato.
Winnie is desperate and doesn't know what to do next. She is about to marry her lover Paul, who has returned from war captivity. Both want to emigrate to America short after marriage. But the young woman has an illegitimate one-and-a-half-year-old son, whom she has kept secret from her fiancé. The short-tempered Paul would never understand that. When she is on her way to the orphanage, the grumpy senior civil servant Hieronymus Spitz and his little dog Tobby get into her train compartment. After a short observation, Winnie is certain that the misantrope actually has a good heart, because he lovingly takes care of his dog. Without further ado she leaves little Niki with the tax accountant and disappears from the train. Only a note with a request remains. The overwhelmed old gentleman initially wants to get rid of the child, but then takes it home and takes care of it together with his housekeeper. Both take the bundle of joy to their hearts. But then everything turns out differently.
Two nine-year-old girls—rude Luise Palfy and respectful shy Lotte Körner—meet on a summer camp. Apart from their different hair-do, they look alike. They have never seen each other before, but soon find out that they are identical twins. It turns out that their parents divorced, each keeping one of the girls. They decide to trade places at the end of the summer. Lottie curls her hair, Lisa braids hers, and both go off to where they have never been before. The adventure begins.
Eva se acaba de casar con un señor mayor, pero descubre que está obsesionado con el orden en su vida y que no tiene mucho espacio para la pasión. Ella se desanima y lo abandona, volviendo a la casa de su padre. Un día, mientras se baña en el lago, conoce a un joven y se enamoran. El marido se ha afligido por la pérdida de su joven esposa, y el destino lo une al joven amante que le ha arrebatado a Eva.
