Unsane (15)

Data analyst Sawyer Valentini has moved from Boston to Pennsylvania to escape the barrage of text messages of a mentally unstable admirer called David Strine. She searches online for support groups for victims of stalking and is directed to Highland Creek Behavioural Centre, where trained staff will apparently diagnose the best course of action. Filling in a series of forms to complete her treatment, Sawyer is shepherded into the depths of the facility, where she is condemned her to a living nightmare.