“Goodbye Horses: The Many Lives of Q Lazzarus” is a feature documentary about the life and music of singer-songwriter Diane Luckey, also known as Q Lazzarus. Q sang the hit song “Goodbye Horses” which appeared in the Jonathan Demme films Married to the Mob and Silence of the Lambs, and had a brief moment of fame in the late 1980s/early 1990s before mysteriously disappearing for 30 years.