The story follows Maud, a young and solitary nurse who is deeply marked by her religious faith. After a traumatic episode in her previous life, she seeks redemption and purpose by caring for Amanda, a talented and hedonistic dancer facing a terminal illness. At first, their relationship seems to be a combination of affection and admiration, but as time goes on, Maud's beliefs begin to clash with Amanda's carefree lifestyle.
Maud becomes increasingly obsessed with the idea of saving Amanda's soul, convinced that her faith can help her find peace in her final days. However, the situation complicates when Amanda, with her impulsive and provocative personality, challenges Maud's beliefs, pushing her to her limits.
Throughout the film, the line between devotion and madness becomes blurred. Maud delves deeper into her visions and unyielding faith, leading her to make extreme decisions that unleash a series of disturbing and unsettling events. As the emotional tension grows between the two women, an internal conflict rises within Maud, exploring themes of redemption, loneliness, and the struggle between light and darkness. The chilling atmosphere and intimate narrative make this story an intense exploration of the human psyche in the quest for salvation.