"The work consists entirely of an appropriation of Alfred Hitchcock's 1960 Psycho slowed down to approximately two frames a second, rather than the usual 24. As a result it lasts for exactly 24 hours, rather than the original 109 minutes.
The film was an important work in Gordon’s early career, and is said to introduce themes common to his work, such as recognition and repetition, time and memory, complicity and duplicity, authorship and authenticity, darkness and light.”
Motifs are generally so unobtrusive in a film that they can pass unnoticed even after repeated viewings. In Psycho, for example, Hitchcock employed the “doubles” motif with great density. The 2 pairs of leading actors (Janet Leigh/Vera Miles and Anthony Perkins/John Gavin) were cast according to physical resemblances, which suggest psychological similarities. Many of the scenes feature mirrors, which reinforce the doubles motif, as well as suggesting themes of reality versus illusion, truth versus deception, and conscious behavior versus impulse.
Giannetti, Louis D. Understanding Movies second edition. New Jersey, 1976.