Year 2038: The mineral resources of the earth are drained, in space there are fights for the last deposits on other planets and satellites. This is the situation when one of the bigger mining corporations has lost all but one mineral moons and many of their fully automatic mining robots are disappearing on their flight home. Since nobody else wants the job, they send prisoners to defend the mining station. Among them undercover agent Stone, who shall clear the whereabouts of the expensive robots. In an atmosphere of corruption, fear and hatred he gets between the fronts of rivaling groups.
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 has just gotten married to an older gentleman, but discovers that he is obsessed with order in his life and doesn't have much room for passion. She becomes despondent and leaves him, returning to her father's house. One day while bathing in the lake, she meets a young man and they fall in love. The husband has become grief stricken at the loss of his young bride, and fate brings him together with the young lover that has taken Eva from him.
