The perspective in this painting is that of the passer-by. The woman about to go to bed appears to have arrested her movement of drawing the curtains as her gaze meets ours. This picture can be seen as a play on the theme of allure and forbidden love. The light adds to the visual tension by alternately concealing and revealing.
<bdi><a href="https://en.wikipedia.org/wiki/en:Johan_Gustaf_Sandberg" class="extiw" title="w:en:Johan Gustaf Sandberg"><span title="Swedish artist (1782-1854)">Johan Gustaf Sandberg</span></a>
</bdi>
1844<div style="display: none;">date QS:P571,+1844-00-00T00:00:00Z/9</div>
<a rel="nofollow" class="external text" href="http://collection.nationalmuseum.se/eMuseumPlus?service=ExternalInterface&amp;module=collection&amp;objectId=132623&amp;viewType=detailView">  Hans Thorwid / Nationalmuseum</a>