Bilis Manger is absolutely terrifying. It's a diversion from the main storyline of the season, but one absolutely worth it.

Cuckoo is one of my favorite stories from the entire run of Torchwood. The new characters we're introduced to all feel like they could easily have had a prequel monthly audio I missed based on how much depth they all have. Billis is chilling and calm as always. I love all the callbacks to More Than This and Cardiff Unknown. 5/5 one of the poster stories for what Torchwood can be.