Don Anselmo, a retired old man, decides to buy a motorized disabled stroller since all his pensioner friends own one. His family strongly refuses him to purchase the vehicle, so don Anselmo decides to take extreme measures to achieve his goal…

Rodolfo and Petrita each live in separate quarters in dilapidated Madrid, while looking to have a little apartment (or "pisito", in Spanish dialect). Unfortunately their low salaries prevent them from acquiring one. Soon, Rodolfo's co-workers urge him to marry the old and frail Doña Martina, who is the main tenant in the apartment he boards in. According to Spanish rent-control law, he could inherit the lease from his spouse. Thus begin his misgivings and Petrita's. Written by Emilio