Men risk their lives breaking into moving freight trains to recover leftover grain and sell it on. Nightwalker translates into film these nights of endless work in which bodies disappear, swallowed up by the striking industrial landscapes of the Rio Grande port and ensnared by the Brazilian economic crisis.

In winter, the biggest beach in the world changes, vacationers return to the city and leave their beach houses empty. Daniel, Tando and Soninho sneak around the streets of Balneário Cassino at night, observing the houses in order to break into them. After collecting some gifts, Soninho explains why he was missing.