Veteran actress Maria Enders is at a crossroads in her career. She revisits the play that launched her to stardom 20 years earlier, but this time in the role of the older character, Helena, while a young Hollywood starlet, Jo-Ann Ellis, takes on her original role of Sigrid. Alongside her personal assistant, Valentine, Maria travels to Sils Maria, a remote region in the Swiss Alps, to rehearse and confront the passage of time as well as the blurring lines between life and art.

As Maria and Valentine delve deeper into the complex layers of the play, their relationship grows tense and multifaceted. Valentine serves as both a confidante and a foil to Maria, challenging her perceptions and insecurities. Meanwhile, Jo-Ann's unpredictable behavior and rise in fame stir further reflection and self-doubt in Maria. The interplay of these relationships sets the stage for an intricate exploration of aging, fame, and identity against the stunning backdrop of the Swiss mountains.