# Gray Matter

> episode of Oz (S4 E5)

**Wikidata**: [Q114508213](https://www.wikidata.org/wiki/Q114508213)  
**Source**: https://4ort.xyz/entity/gray-matter-q114508213


## References

1. Metacritic
2. [Trakt.tv](https://trakt.tv/shows/oz/seasons/4/episodes/5)