La sconosciuta (2006) also The Unknown Woman (U.S. release title, 2008) or The Other Woman is an enigmatic Italian psychological thriller mystery film, directed by Giuseppe Tornatore that depicts a woman alone in a foreign country, haunted by a horrible past, and in search of a lost daughter.
Irena (Kseniya Rappoport), a Ukrainian prostitute on the run, is determined to find a job in an elegant apartment building in northern Italy, and starts by cleaning the stairs. She does it in order to inch her way into working for a family residing in that building. She befriends Gina (Piera Degli Esposti), the nanny of the family's child, Thea (Clara Dossena), who also lives with them in their apartment. When the nanny is crippled in a fall -- tripped by Irena -- but presumed to be accidental, Irena is hired to take her place. Through flashbacks, viewers learn that Irena has been physically and emotionally abused, and forced to bear nine children, all taken away at birth to be sold to adoptive families. After stabbing her pimp and leaving him for dead, she sets out to find her youngest child, whom she believes is Thea; hence the plot to work for them. Adoption documents in the apartment
(This is information generated from a Wikipedia article, licensed under the GNU Free Documentation License.)