Anyone who thinks Marilyn Monroe can't act should see this, she's genuinely creepy in this thriller.

A slow-burn sort of noir, with a palpable sense of sadness. Marilyn Monroe is captivating as a desperate, disturbed, unhinged woman, and Richard Widmark breaks out of type. And you've got some nice songs from Anne Bancroft... perhaps a few too many (four in the first 20 minutes) but they help establish the melancholy mood. Although there's not enough of the noir-style photography I enjoy, the film goes to some pretty dark places. Really creates an unsettling air of psychological danger.