A community of nuns, who are in charge of an asylum for orphaned girls, decide to get on motorbikes. A car is absolutely necessary for their work and, after signing the usual letters, they take over the vehicle. Sister Tomasa has to drive it. Soon she will be known throughout Madrid as Sor Citroën. But to reach this virtuosity she has had to go through the long adventures of all beginners… and with the maximum aggravating circumstances. (FILMAFFINITY)