Harald Mayr is a devoted postman in a small village called Gaiswinkel. He is not only delivering letters, but also checking them. If their content doesn't meet his moral standard, he amends them to fit this. Day in, day out he lives his routine, each discrepancy throws him easily out of the track until he meets Lisa. She is a German seasonal worker and is first shocked by Harald's activity. But Lisa succumbs to the appeal of 'opening the envelope' after sharing some quality time with Harald. They develop a special relationship, but the intrusion in the privacy of individuals and letters leads to controversies.