This is an early talkie from William Wellman who went on to make some excellent movies like Battleground. It's an out-an-out and unashamed meller with not a lot of originality in the one about the hooker who lucks into a good man who's prepared to help her escape justice after she murders a 'trick'. Being a seaman he is obliged to leave her on an island in which she is the only white woman which makes her the lust object for the other white men, outlaws to a man, already holed up there. One of them, the gaoler-cum-executioner, is especially taken with her and steals the mail the seaman is writing to her, letting her think she is abandoned. The guy she 'murdered' in New Orleans turns up on the island leaving her free to return to New Orleans which doesn't sit well with the executioner, who 'lends' her a gun (which is against the law of the island), knowing she is almost sure to shoot the guy she already shot again. I could go on but I'm sure if I did you'd be ahead of me. For the time (1931) this was fair entertainment even with no durable actors.
Review of Safe in Hell
