Cudzoziemka (The Stranger) is a Polish psychological novel by Maria Kuncewiczowa, published as a book in 1936.
The protagonist, Róża Żabczyńska, was born in the half of 19th century in Taganrog, Russia, to a Polish family.
She descends into madness even harder a couple of years later, when her beloved son, Kazimierz, dies at an early age.
The womanly sensitivity of Róża, confronted with her life disappointments, turns her into a cruel wife and a mean mother, humiliating all the people around her.
One of them consists of contemporary events, limited to one ordinary day, filled with reflection and thoughts of the protagonist.