Unsane is a 2018 American horror film directed by Steven Soderbergh. The cast of the film consists of Claire Foy, Joshua Leonard, Jay Pharoah, Juno Temple, Aimee Mullins, and Amy Irving. Steven Soderbergh’s “Unsane” opens from the perspective of a stalker. We hear in voiceover how the object of his affection made him see the world in a completely new way. And make no mistake. This woman is an “object” to this man, someone who does not have her own agency or reality outside of what she can do for him. We will later learn that the stalker is a man named David Strine (Joshua Leonard) and the woman is Sawyer Valentini (Claire Foy), whom he met while she was caring for David’s father in his final days. He became obsessed with her because of the comfort she provided his father, and, by extension, David. In other words, she became an object that made him feel good and so he felt a truly one-sided connection, as they often are with stalkers. On the surface, “Unsane” is a potboiler, a routine stalker thriller. But it works because of how much there is going on within that familiar structure, courtesy of Jonathan Bernstein & James Greer’s smart script, Soderbergh’s claustrophobic direction, and Claire Foy’s committed lead performance.