Da Vinci’s Demons was a gritty, semi-occult series created by David S. Goyer and concentrating on the intrigue surrounding Rome during the early years of Leonardo Da Vinci (Tom Riley). The episode the devil was directed by Paul Wilmshurst and first aired in 2013.
|Vlad and impaled|
|workings of Da Vinci's mind|
|Paul Rhys as Vlad|
Rhys was excellent as Vlad and the show seemed rather gritty – though the episode struggled as a standalone as much was happening that relied on previous episodes – no bad thing in itself.
The episode's imdb page is here.