Angel, the acclaimed spin-off of Buffy the Vampire Slayer, is now streaming for free, giving new audiences a chance to revisit a series many consider the greatest supernatural TV spin-off ever made. The show took the vampire-with-a-soul character Angel (David Boreanaz) from Buffy, where he was Buffy Summers' brooding love interest, and relocated him to Los Angeles to run his own supernatural detective agency, allowing it to develop a darker, more morally complex identity distinct from its parent show.

Where Buffy the Vampire Slayer followed a classic hero's journey through adolescence, Angel evolved into a noir-inflected drama about the blurred line between good and evil, growing more ambitious as Buffy's own quality dipped after its strong early seasons. Supporting characters such as Cordelia Chase (Charisma Carpenter) and Wesley Wyndam-Pryce (Alexis Denisof) matured significantly from their more one-dimensional Buffy roles, while Angel himself confronted the impossibility of atoning for the atrocities he committed as the soulless vampire "Angelus".