La Sconosciuta plot
Irena 'the unknown' is a Ukrainian immigrant who lives in an Italian town. Her past is characterized by violence and humiliation. She asks for help from the doorman of an apartment building. In exchange for a portion of her salary, he allows her to clean the stairs. Irina befriends the Adachers' nanny, a wealthy couple who live in the building where Irina cleans. When the nanny falls down the stairs, under not entirely unexpected circumstances, Irina takes her place. She soon proves to be the perfect housekeeper and makes herself indispensable as a nanny for Tea, the young daughter of the Adachers. But Irena has a hidden agenda. The reason she squeezes into the wealthy couple's life is dark and shocking.