The young worker Tóth Gáspár gets into hospital with stomachache. During the night his state is worsening. The doctor on duty, Málnási does not attend the patient despite the call of the nurse, for he spends the night with nurse Margó.

The war is over, but the Bodog family is starving. Varg's neighbor takes Mihai Bodog with him to do restoration work. They are well paid for this work and Mihai can finally please his wife Erji and their young son. When the workers are later hired to build a bridge, Bodog, a specialist bridge builder, cannot resist the challenge and is hired. But this time the workers are delayed in paying their wages, so their family is once again in need. Erji is forced to look for work...

In depression-era Saskatchewan, families took refuge in the magic world of radio. When Grandad's old Marconi is short-circuited by the stingy power company, so begins "the great electrical revolution," and a good-natured comedy that pits the working class against the capitalists.