Manas is hired to work for master Tatos till the spring, "when the cuckoo will call". There is one condition of the contract: if anyone of them gets annoyed with another, he loses everything. Unable to stand the day-and-night work for stingy master, Manas leaves without a pense of salary for months work. Next servant who knocks at Tatos's door is Manas's small brother, smart Simon.

The young couple, opposing the environment and especially the prohibitions of the girl's father, find the strength to stay true to their love.