Numbered Swiss bank accounts may be unethical, but they are not usually sexy. Banking District, a financial thriller available on Amazon, is an Alpine version of HBO’s Succession—a wicked look at a rich and powerful banking dynasty in Geneva. Beneath a veneer of elegance and hauteur, the heirs to the Grangier fortune scheme against each other, piling layer upon layer of envy, betrayal, and infidelity. The problems start from within, but the family fortune is also imperiled by a demanding Russian oligarch—a treasured client—and a newly empowered U.S. Treasury Department intent on upending Swiss-banking secrecy laws to catch tax evaders. The French-language show may not be quite as clever and imaginative as Succession, but it helps fill the gap until Season Three arrives. —Alessandra Stanley

Note: with English subtitles.