The series "Bednye smeyutsya, bogatye plachut" is a Russian multi-genre saga that tells the story of a mansion on Rublevka and its inhabitants. At the center of the plot is a simple and modest girl named Ekaterina, who by chance becomes a maid in a wealthy household. It turns out that behind the walls of the luxurious mansion, there is a whole world with its own problems, laws, and intrigues. Katya and her colleagues are faced with detective investigations, family twists and turns, and passionate love.