When the farm boy Felix is born with a caul, the rumor spreads in no time that this boy can succeed in anything. One day he would even marry the princess - he just has to trust in his own destiny. But the king and alchemist Ottokar, however is obsessed only with gold and wealth, seeks to kill the child, by throwing him in a river.

Nina (38) loves her little family and is passionate about her job as an architect. When she returns to work after parental leave, she is able to save the office from bankruptcy with an ingenious idea. The only catch: she has to pretend to be single and married to her work. Nina gets no help from her husband Torsten (38) because he sees her dream job as a threat to the family. In desperation, Nina pretends he is her brother and secretly hires granny-for-hire Irmgard (70). Between lies and success, Nina's life picks up so much speed that she soon can no longer find the emergency brake.

The rules of the game are set by a child who is asked questions by the director about love, jealousy, the number of people involved, kissing and kissing in the film. Two women and two men then act out human relationships according to set rules - as desire, love, jealousy, anger, indifference, tenderness, arguments, separation, staying together, conversation, getting used to each other, longing.