The character players are the best here. Adolph Menjou was generally reliable and here he is plausible as a shady restaurateur. Charles Winninger and Helen Westley are somewhat amusing as Americans. (This takes place in Paris.) Gregory Ratoff is less interesting. He was Russian but if his Russian dialogue is legitimate, I must have misheard my Russian grandparents and wasted four years in Russian class at an Ivy league school. (And both are possible. The point is, he is not well directed.) Tyrone Power seems uncomfortable as the male lead. Loretta Young's character is written well. It is probably the most complex in the movie. And she was almost always good.
Somehow she doesn't seem to have filmed well, albeit often in soft focus. She was one of the greatest beauties in Hollywood history and had a long, illustrious career. Here, though, her overbite is very noticeable and she seems unnecessarily thin.
Nothing about the movie is offensive but it never really convinces.