She Will explores the story of Veronica Ghent (Alice Krige) who after a double mastectomy, goes to a healing retreat in rural Scotland with her young nurse Desi (Kota Eberhardt). She discovers that the process of such surgery opens up questions about her very existence, leading her to start to question and confront past traumas. The two develop an unlikely bond as mysterious forces give Veronica the power to enact revenge within her dreams.