While changing in her luxurious hotel room, a woman (Caterina Varzi) loses herself in memories of a former lover and a passionate night they once shared in Paris. Unbeknownst to her, a burglar (Alberto Petrolini) has broken into the room. Concealed behind a mirror and watching undetected, he observes her private, intimate desires unfold, finding her hidden vulnerability far more valuable than any object he intended to steal.