Fritz Langs great, clever movie about fidelity, of all things, wrapped in a murder melodrama. Robinson plays a meek, well-respected man of standing who after sending his wife and child away for the summer (a common practice of well-off New Yorkers in the days befor air conditioners)lusts after the painting of a beautiful woman in the window of an art store.
The conservative, reliable Robinson imagines what it would be like if he were presented with the opportunity to be impetuous for once. Oh, what he would do if he ever met this woman.
Lang obliges, or shall we say lets him have it, and Robinson's dream turns into a nightmare. A lesson actually. Remember what your mother told you about what happens to little boys who smoke?
Maltin calls this a melodrama. It's actually a very subtle, dark comedy, one without any jokes. Just a scenario that gets out of hand as it rolls along. I can't explain why without giving it away, just a terrific storyline.