Before commenting on the film wanted to clarify the meaning of "caifán", which refers in the plural, in its own title.
Several years ago (in the early 50's and 60's of last century) in Mexico City were called so that people could be seen as thugs, lazy or just wandering in some neighborhoods. Also said that the term emerged as a spanglish for "me cae fine", in other words, "I like that person."
The plot shows a high-class young couple who escapes from a party-boring-snob friends, with the intention of having a foreplay in an abandoned car. The arrival of Capitán Gato and his "caifanes" changed their plans for the couple that night. Together, rich and poor, made a picturesque and "teaching" night journey by cabarets, gas stations, parks, funeral homes and inns in the Mexico D.F.
The movie shows, without resorting to bombast, that meeting between young people is different, just a sample of generational tastes, dissection classes.
Also learn more in a fun night mexican habits and customs of the country in a documentary to use. The psychological study made of the characters portrayed is worth seeing and never entretenemiento not decay along the projection. Notable movie.
6/10