This is the first full-length album of Sigh's to explore their more well known avant-garde/experimental sound (Ghastly Funeral Theatre marking the true beginnings of their experimentation). An inside sleeve of the album dictates the following passage:
"This album is way beyond the conceived notion of how metal, or music, should be. In Essence it is a movie without pictures; a celluloid phantasmagoria. Accordingly, the film jumps, and another scene, seemingly unconnected with the previous context, is suddenly inserted in between frames. Every sound on this album is deliberate, and if you find that some parts of this album are strange, it isn't because the music is in itself strange, but because your conscious self is ill-equipped to comprehend the sounds produced on this recording."
Hail Horror Hail was listed in the British extreme music magazine Terrorizer as the ninth best release of 1997 and made it on their top 100 list of most important albums of the nineties.