Ma (2019)
Sue Ann is a loner who keeps to herself in her quiet Ohio town. One day, she is asked by Maggie, a new teenager in town, to buy some booze for her and her friends, and Sue Ann sees the chance to make some unsuspecting, if younger, friends of her own. casino, kidnapping, psychopath, underage drinking, revenge, murder, slasher, psychological thriller, stabbing, veterinary, mental illness, loner, school loner, hanging out, munchausen syndrome by proxy