She Will tells the story of Veronica Ghent, a charming actress who questions her existence after undergoing a double mastectomy. After surgery, she travels to a remote rural Scottish retreat with a young nurse, Desi, for a healing retreat. Something about the land is different, the other guests are eccentric, and nature seems to have its own way of doing things. Immersed in the drama, Veronica is given a new lease of life by a mysterious force, finding purpose and meaning through the magical elements of the land, and confronting past trauma. An unusual spiritual bond develops between Desi and Veronica as the mysterious force gives her the power to enact vengeance in her dreams.