Susana Le Marchand, 63, a lonely housewife ignored by her wealthy husband and alienated by their social milieu, hires a new maid, Hilda. Hilda’s presence at the house suddenly triggers an identity crisis in Mrs. Le Marchand and makes her reevaluate her life. She begins remembering her revolutionary past and questions her luxurious but empty present. In the meantime, her dependency on Hilda grows slowly and becomes an obsession. An obsession that, in the end, will come at a high price.