From what I read, this movie was the ploy to stay within the studio contract system but show them that Monroe could act. I never thought of Monroe as being a prop or fashion sucker (credit ATR) as much as a tragic figure from a messed up upbringing that was able to use the Hollywood system to satisfy a dream. And she dreamed of glamour and adoration. And she knew she could get it through acting. So she tried damn hard at it.
I think this movie is a very good movie considering it was made in the system and winin code. Obviously things like the little girl at the window and other key scenes weren't going to play out like you would think now that we've seen movies from that time, but then it must have been masterstroke. And Monroe is great in it. This is a great role for what can be described as model looks that portend to hide no brain. Because it takes some brains to pull it off.
I laughed at some of the prop and studio usage and they introduce side characters from what seems out of nowhere, but this is a decent movie to check out if you like suspense movies of the time or are just a fan of Monroe or the other stars.