# The Blue Butterfly

> episode of Castle (S4 E14)

**Wikidata**: [Q51206590](https://www.wikidata.org/wiki/Q51206590)  
**Source**: https://4ort.xyz/entity/the-blue-butterfly-q51206590


## References

1. Metacritic
2. [Trakt.tv](https://trakt.tv/shows/castle/seasons/4/episodes/14)