Vishner--Mayer. Forced into this life on February 13, 1949. Left on purpose on August 22, 2013. So reads the New York Times obituary that legendary anti-war Yippie activist Mayer Vishner asked to be posted after his death. LEFT ON PURPOSE is the story of a four-year friendship between filmmaker Justin Schein and Mayer Vishner, Abbie Hoffman's comrade in arms, former L.A. Weekly editor, and stubborn contrarian. What begins with Justin's simple curiosity about Mayer's intellect, values and the rebellious legacy of his counter-cultural generation turns into a dark yet profoundly humorous journey when Mayer asserts his right to his last political act: the right to end his life.