Ana (Manuela Campagna) is a 17-year-old girl who lives in a border town between Brazil and Argentina. There, she has no leisure options and no internet access. Your only refuge is to visit a tallow / lanhouse known as "The Cave". It is there that, one day, she ends up meeting Murilo (Fagundes Emanuel), the boy she will fall in love with.

Searching for answers, four friends resort to the Ouija board. Questions are asked, revelations made. And a choice must be made...