Angel's Skin (1986)

Héléna Werner leads a reclusive and deserted life. Alone, as if withdrawn from the world in her apartment of refined luxury. She places an ad for a private secretary, a "handyman" who would take her away from the daily grind. As soon as he starts working, Milo adopts an intriguing behavior. From the start, he takes everything in hand and the doors of the apartment close on them both.