The story begins not with a sleep aid, but with Mogador, a Moroccan town where the affluent La Bessiere (Adolphe Menjou) might have preferred something stronger. His troubles begin with his fascination for Amy (Marlene Dietrich), the newly arrived cabaret performer captivating audiences in her stylish tuxedo, top hat, and heels. Legionnaire Brown (Gary Cooper) is also among those watching, developing a fondness for her and even buying one of her apples for 20F! What follows is a somewhat amusing romantic entanglement complicated by two lengthy musical performances from Dietrich and some mischievous behavior from Cooper that leads him into the dangerous desert. While Cooper’s contribution isn't particularly memorable—his acting felt a bit flat—Dietrich shines as she playfully manipulates both men, and I did feel sympathy for Menjou’s character, accustomed to getting whatever he desired. The film handles themes of sexuality with a certain subtlety; this might not have been unusual for European viewers, but those in America may not have been so familiar with seeing a woman confidently succeeding in a male-dominated environment. The final scene left me questioning whether “Amy” had truly considered the consequences of her actions.

Source on TMDB