Sunday afternoons bring about an unusual ritual for the mysterious Chiennemarie. She invites an unknown partner, camera in hand, to capture her raw, unscripted submission. Today, she's the "chienne," the pup, eager to please and explore her boundaries. With no actors present, the focus is solely on her. She strips, exposing her toned body, and begins to touch herself, her eyes locked onto the lens, inviting the viewer to join her.