Bob Borgatti (editor of Slipstream) says,

This is a segment from the film “in/word/out” by Robert Borgatti and Paul Lamont. It is a visualization of the poem “Seven-Year-Old Finds Her Murdered Mother’s Naked Body” by Lyn Lifshin. Lifshin performs the voice-over narration for the piece.

Check out Lifshin’s website for her bio and abundant links.