It is a time of extreme housing shortage in Helsinki. People with room in their flats are required either to find subtenants or to lodge anyone sent by the housing commission. Abel and Jussi Siimes, two devoted haters of women, find themselves in this predicament. They need to find a subtenant quickly to avoid the possibility of the housing commission sending a woman, God forbid it, to live with them. Abel's acquaintance, an assessor, recommends his nephew Kaino as the perfect choice.