That’s Why

A postman Amadeus Macků who lives in a small village wants to construct a self-powered flying machine. The whole village came to watch his attempt. However, it ends up in a fall and bruises as usual. He is attended by a young lady-doctor. Amadeus cannot give up and so the inhabitants must come to the post office to pick their letters up. The doctor, who visits the lone man in his house at the edge of the village, appeals to him very much. The only one, who helps Amadeus with his constructing work, is a game-keeper Joska. The others want to get their letters regularly and establish a club, the aim of which is to prevent Amadeus fly. The doctor has her former school mate Rudla visiting. He offers her a job in the city, wedding and an apartment they can get this way. The romantic lady does not like these reasons. Joska builds Amadeus a launching ramp from wood but the club pulls it down in no time. The postman reproaches his only friend that he has not watched it over. He himself repairs the ramp and is not stopped even by a local chronicler's saying, that everything he has been trying to develop had been invented long ago. The club members at least cover the landing area with hay. And again the whole village gathers. Rudla already knows who his love-rival is, and is taking the doctor to the city instead of going to the ramp. After a row the young lady gets out of the car and rushes to Amadeus who has started off the ramp. An ambulance is going to the city. Inside there is bruised Amadeus, however, not alone. He is accompanied by the doctor.