Danger in the Middle East (1960)

A mater criminal makes plans to pull off one big score before he retires. Unfortunately for him, he dies while attempting it. However, before his death he comes into possession of top-secret papers that could be worth a fortune to whoever has them. His wife determines to get those papers for herself, but she discovers that she's not the one after them--there are rival criminals, powerful organizations and a sleazy blackmailer.