Silo

Thousands of people live underground in Silo, maintaining a structure whose history and rules they only partly understand. The outside world is presented as uninhabitable, and questioning the accepted account is not a harmless intellectual exercise.

Rebecca Ferguson's Juliette brings a practical mind to the mystery. Someone accustomed to repairing machinery asks different questions from someone accustomed to explaining why a rule must remain in place. That distinction gives the investigation a useful physical basis.

The silo's design helps the social world feel coherent. Distance between levels affects work, status and access, rather than serving only as an impressive image. The pace is patient, with discoveries carrying more weight because daily life has been established around them.

For viewers who enjoy the controlled institutional unease of Severance, this is an involving science-fiction mystery. It is at its best when an ordinary object or a maintenance problem makes the accepted version of the world a little harder to believe.