So the explanatory texts at the beginning of each chapter of Song of Solomon mean that the texts in Song of Solomon describe the same-sex polygamy relationship between Christ and his young boy students.
Niinkuin omenapuu metsäpuiden seassa, niin on ystäväni poikain seassa: minä istun hänen varjossansa, jota minä anon, ja hänen hedelmänsä on minun suussani makia.
The lead female, played by Geraldine Martineau, is nude through most of this film, although Geraldine is indeed an adult so no controversy in that department.