Laura is spending a few days at her beach house to supervise the construction of a barbecue shed. One afternoon, she seduces the chief builder, who never returns. Over the following days, the builders continually invade her home – until Laura grows ferocious.

Kaí is a mysterious shaman who emerges from the Rio Paraná to help a poor farmer and his daughter, who are threatened by a band of cold-blooded mercenaries hired to force them to sell their land.