The novel "Thieves Like Us" by Edward Anderson had been bought by RKO in 1941 for $10,000. After numerous writers tried to make a screenplay out of it, nothing became of it. According to producer John Houseman, "I found the book and gave it to Nick to read, and he fell madly in love with it–as indeed I did, but Nick particularly was very familiar with that territory. He'd been there when he worked with the Lomaxes, he'd been there when he worked for the Department of Agriculture, and so on. And that whole Depression stuff was terribly his stuff. So he sat down and wrote the treatment. I'd come home at night and we'd go over it; I'd edit it a little, that's all, and it was very, very good." Houseman would repeatedly send in treatments, fronting for the novice Ray. Houseman, who had considerable authority as a producer, was aware of Ray's passion for the project and there was never any doubt that Ray would direct the film.