Three episodes: 1) "A Christmas dinner" where the family members fantasize about being somewhere else. The fetishist father wants to put on feminine clothes. The son longs for another transvestite adventure. The daughter yearns to be a singer and destroy the saints of the church with her voice. The youngest son wants to stab everyone dead. 2) "Game of mirrors". Two young classmates kiss on a picnic, but the girl's brother accuses the couple of being immoral. Bizarre things develop. 3) "Tetrahedron". A very fat man faces his girlfriend's longing for love.

Mexico's submission for the Academy Award for Best Foreign Language Film in 1974