In a ruined and toxic future, thousands live in a giant silo deep underground. After its sheriff breaks a cardinal rule and residents die mysteriously, engineer Juliette starts to uncover shocking secrets and the truth about the silo.
After her adoptive mother dies, Hortense, a successful black optometrist, seeks out her birth mother. She's shocked when her research leads her to Cynthia, a working class white woman.
A screener at the British Board of Film Classification (BBFC), who has earned an unsavory reputation for being the strictest censor of violent films, begins to spiral out of control after viewing a low-budget horror with similarities to the disappearance of her sister.
