Described by Melody Maker's Chris Welch as a "science fiction pantomime album", the songs are linked with a story on the back cover which details the dream of Simon Simopath to fly.

[2] In constructing a narrative storyline to connect the songs, The Story of Simon Simopath can be considered the very first full-length rock opera, predating both The Pretty Things' December 1968 entry S.F.

[5] He suffers a nervous breakdown and is unable to find help in a mental institution, but gets aboard a rocket and meets a centaur who will be his friend and a tiny goddess named Magdalena, who works at Pentecost Hotel.

The title of the album is a possible reference to William Burroughs' novel Naked Lunch, which coins the word simopath to describe several escapees from a mental institution.

[6] In a retrospective review on AllMusic, Stewart Mason feels that the "unashamedly twee early concept album", with its "deliberately childlike tone", despite being "a collection of unconnected songs forced together" in a "rather silly story", is a "uniformly solid set of well-constructed psych-pop tunes".