An intoxicatingly sinister atmosphere and a marvelous, unhinged lead performance.

It’s impossible not to share in his palpable fascination with leading star Ariana Ron Pedrique, who plunges head-first into the physical and emotional particulars of a slow-motion breakdown: paranoia, mania, and lipstick-smeared laughter are all characters in her “Repulsion”-esque unraveling. But she’s also given a dose of humanity, as in a late-breaking sequence where Pedrique plays and sings a piano ballad, addressing the audience in one of the film’s many fourth-wall-breaking flourishes.