The billy goat has come down to earth with a mission - to prevent people from finding a treasure hidden near an ancient Thracian sanctuary. The trumpet player, Jonah, moves into the remains of his grandfather's house near where the treasure is hidden. In a tunnel under the house he finds a stone with a bird engraved on it and a map with an inscription in Arabic: "To have a house of gold, fall onto the sky and find the twin!" A copy of the same map brings Rumba and Emma to the same place. Rumba is Bulgarian and a passionate treasure-hunter. His wife is American and studies Bulgarian folklore as a way to fight globalization. Rumba wants to buy Jonah's property so he can find the treasure. Jonah, whose flat in town was taken away from him by other foreigners because of debts, is afraid that the newcomers will deprive him of this property, too. A conflict arises between the foreign woman and the trumpet player that is strengthened by Jonah's extreme nationalism. Two more people get mixed ...