Idiot is a quirky restaurant in St. Petersburg that takes its name from the famous novel by Fyodor Dostoevsky. The menu features a mix of Russian and European cuisine, with dishes like borscht, beef stroganoff, and schnitzel. The decor is eclectic and features vintage furniture and artwork, giving the restaurant a cozy and welcoming atmosphere. Idiot is a popular spot for casual dining and drinks with friends.