Michel and Hélène Dupuis are an uneventful couple in 1958. Michel works in a bank and Hélène takes care of the household... until the moment they accidentally find themselves transported to 2025 and discover that things have changed a lot.
A 17th-century nun in Italy suffers from disturbing religious and erotic visions. She is assisted by a companion, and the relationship between the two women develops into a romantic love affair.