Péter Ilosvay and Lina Vásárhelyi are wife and husband, but don't come along with each other. After the divorce they go on living under the same roof for they are unable to agree on the common wealth.
Three mice run, cavort, sing and dance around in the stores and restaurants a big city at night. They wind up in a café for an early-morning snack and stocking up on food provisions before they return to the safety of their den beneath a man-hole cover in the street.
The underage Rosemarie is still too young to run her inherited farm by herself; but she's more than aware that her foster father and the farm's administrator, the farmer Schlieker, is constantly skimming from the farm's finances to line his own pocket.
Pre-war intelligence man Tommy Blythe interrupts his honeymoon to investigate the discovery of vital Air Ministry blueprints on a woman killed in a London road accident.
The vassals of the Asano clan, who surrendered the castle & became wanderers, deceive the enemy and the public, wait for an opportunity to avenge their master and his family.