The purebred breeding pig "Princess Anastasia" is the culmination of the breeding efforts of the estate owner Theobald Langendorff. For their own protection, Langendorff hires the private detective Bruch, for he fears the dark machinations of his neighbor Matthesius, who likewise owns a purebred pig. Theobald's nephew wants to marry the ballet dancer Ilse, but he'll only get his share of his inheritance, if all the members of the family give their blessing. Everyone is fine with the idea except Theobald's sister Julia, who says the marriage will take place when purebred breeding pigs fly ... and there'll be no pork in the treetops for a long time to come.