Marce, his wife Adriana, his two sons, Mario and Jacqueline, and groom it, Carmelo, are the only members of Aztlan Circus, who wanders through the villages of Texcoco, north of Mexico City. The tightrope is the history of resistance in this family that persists in taking forward an old-fashioned circus because she is convinced of the importance of his art.
In a gritty and alternate 1985 the glory days of costumed vigilantes have been brought to a close by a government crackdown, but after one of the masked veterans is brutally murdered an investigation into the killer is initiated.
This psychedelic tour of life after death is seen entirely from the point of view of Oscar (Nathaniel Brown), a young American drug dealer and addict living in Tokyo with his prostitute sister, Linda (Paz de la Huerta).
A teacher opens a time capsule that has been dug up at his son's elementary school; in it are some chilling predictions -- some that have already occurred and others that are about to -- that lead him to believe his family plays a role in the events that are about to unfold.