A playful exercise in intermittent animation and spasmodic imagery. Playing with the laws relating to persistence of vision and after-image on the retina of the eye, McLaren engraves pictures on blank film creating vivid, percussive effects.
| Directing | Norman McLaren | Director |
| Visual Effects | Norman McLaren | Animation |
| Production | Norman McLaren | Producer |
| Sound | Maurice Blackburn | Music |
| Sound | Bert Niosi | Musician |
| Sound | Lew Lewis | Musician |
| Sound | Gordon Day | Musician |
| Sound | Isaac Mamott | Musician |
| Sound | Perry Bauman | Musician |
| Writing | Norman McLaren | Writer |
