Miguel M. Delgado

A gang of thieves has jeopardized the city and even the police, whose chief urges their forces to captured the band within 48 hours. Meanwhile, band members meet in a cafe run by a widow and her daughter and her suitor, Cantinflas, who maintains a scuffle with the robbers running all at the station. Since then, Cantinflas become a member of the police force for special missions.

Cantinflas enjoys the bullfight show, and wants to crash in every of these spectacles. Also, there's a professional bullfighter, Manolete, who is identical to Cantinflas. Manolete has to give a bullfight show in a village, but Cantinflas arrives first as a stowaway in a train, and he'll be mistake by the real bullfighter. Cantinflas will give us a demonstration of courage.

Cantinflas is a private in the military, who doesn't know anything about discipline or following rules. He only wants to think about his girlfriend, the maid in an opulent hacienda. The owner of the hacienda has an ugly and shy daughter, who is in love with Cantinflas. The problems arrive when the family arranges a wedding between the ugly girl and Cantinflas, who in order to avoid the commitment gets himself arrested. During his punishment, Cantinflas learns to fly with a silly and poorly trained flight instructor.

A lawyer trying to fix everyone's problems, instead causes problems, which always end up in funny situations.

Lopitos, who is horribly inefficient but quick-witted, is invited (because of the current ambassador's superstition about 13 sitting down to a meal) to a banquet attended by the ambassadors of both superpowers. After the news of a series of coups d'état in Los Cocos arrives throughout the meal, Lopitos becomes the official ambassador. At a summit of world leaders, the representatives of the two world superpowers court the allegiances of third-world diplomats to tilt the balance of global power in their favor. The last diplomat to remain unaligned, Lopitos instead harangues the superpowers for infringing on the rights of developing countries to self determination, talking to them with his point of view as a citizen not as ambassador because he arranged his demise as ambassador one day before his speech.

Rosario, the niece of the rancher, returns to the ranch after ten years of absence. She takes in Margarito, a worker at the ranch, who is immediately smitten by her. Rosario is rescued from a runaway horse by the Seven Men, an outlaw a la Robin Hood that steals from the rich and gives to the poor. He also happens to be the twin brother of Margarito, unbeknownst to him. The confusion between Margarito and the Seven Men generates great comical situations in the film.

After reading in the newspaper, Úrsulo runs to seek employment. It is the position of caretaker of a luxury apartment building habited by people more heterogeneous: the professional model, the spiritualist, hippies and all turn to him to solve their problems. But someone in the building, kidnapped an important person and Úrsulo becomes a private investigator.

Bellas de noche continues. The ex-fichera who bought the cabaret continues to work with several of her former companions, the waiter Fabian, the pugilist Bronco who returns to boxing, Carmen, his wife, who returns to booking, the drunk “La Corcholata”, in love with an old man, and a French woman and the pimp “El Vaselinas”, whose favors are disputed by all the women, but who loses his virility and fights to regain it.