An incredibly righteous family: for two years, Mirjam von Arx films a family who advocates a vow of chastity.

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They see themselves as knights of chastity who proctorize sexual freedom. They preach chastity as the highest maxim for men and women - before marriage. The evangelical Christians Randy Wilson and his family - wife, five daughters and two sons - from Colorado Springs are pioneers of the Purity movement. They not only promote a totalitarian religious message, they have also become a political power in the US.

Swiss director Mirjam von Arx filmed the family over two years. Her intimate portrait of an incredibly righteous family is also the story of ultraconservative America (25% of Americans are evangelical Christians), which advocates an absolutist doctrine of purity and salvation.