Eva, a sexology teacher, stays at Robertinho's farm to cure him of his sexual shyness. Successfully, she seduces him and his sister Naná, despite the uncompromising morality of their parents, who are from a traditional family in Minas Gerais. The father, after some resistance, reveals that his moralism comes from a childhood trauma when he caught his parents in a sexual relationship. Eva believes the father can benefit from her expertise and will try to cure him.

Bela Joven 常常会梦见自己被她的司机和男仆强奸，这种幻觉日益增俱。她决定求助于一名心理医生的帮助，可是面对这位病人，医生却有一种无法摆脱的莫名的感情...