What Movies Will It Remind You Of?: Director Aneesh Chaganty nurtures some good Baby Jane / Misery / Carrie / Mommie Dearest vibes here.
There are shades of "Carrie" here, in "Run's" depiction of a demented mother-daughter relationship, as well as "The Act," which centered on Munchausen syndrome by proxy, the clinical name for when a caregiver convinces their subject they have an illness they don't really have.
With shades of Stephen King (think Misery and Carrie, minus the telekinesis) bubbling just below its surface, Run is a taut and highly suspenseful thriller that often zigs when you’re expecting it to zag, resulting in an expertly crafted, nerve-shredding psychological thriller that may tread some familiar narrative territory, but manages to thwart any expectations you may have about what to expect.
Yet, as we go on, she takes more cues from Piper Laurie in Carrie .