Filmed by Jean Eustache for the television program, Les Enthousiastes, Hieronymus Bosch's Garden of Delights presents a series of unstructured observations, free associations, and interpretations on the third panel of Bosch's well-known oil on wood triptych.
A group of friends listen as one man tells them a story about a time when, in a small cafe, he discovered a peephole into the ladies' bathroom and became addicted to looking through it at female genitals. They ask him questions and come to conclusions about sex. This is a filmed, scripted version. Then, the actual person who this happened to relates the same story; this time, however, it is an unscripted documentary, in which the same things occur as in the scripted one.
Aimless young Alexandre juggles his relationships with his girlfriend, Marie, and a casual lover named Veronika. Marie becomes increasingly jealous of Alexandre's fling with Veronika and as the trio continues their unsustainable affair, the emotional stakes get higher, leading to conflict and unhappiness.