Buster’s heart is fine. It’s his brain that’s giving him problems. Breaking into empty vacation homes in rural Montana and pooping in people’s cookware, Buster (Rami Malek) is evading capture from the law, but he’s also—you guessed it—on the run from his own demons.
Buster sports a big Jesus-y beard, but we also see him in a previous life as Jonah, a clean-cut ex-addict supporting a wife (Kate Lyn Sheil) and young daughter. Working graveyard at an airport hotel, Jonah spends too much time listening to the crackpot psychics and screwball conspiracy theorists of late-night television, anticipating some kind of “inversion” that will turn the world on its ear. Most of the time spent watching Buster’s Mal Heart is waiting for the inevitable trauma that induces Jonah’s transformation into Buster.