Chasing Happy, a new play by Michel Wallerstein, takes its name from the title of a best-selling, posthumously published book by John Ryan, the late partner of the play’s main character, Nick. John was killed by a gunman at a Pride parade, a crime that Nick calls “random.” Based on the excerpts Nick reads from the memoir cum self-help tome, John—who was born post-Stonewall and lived in Provincetown, Mass.—was wracked with self-loathing and shame about his homosexuality and remained closeted with many people. His book offers such banal affirmations as “I exist, I am worthy, I am love” and “Let me become who I truly am.” (Another character describes it as “one big stew of Deepak Chopra, Marianne Williamson and Eckhart Tolle, mixed with some gay cliché stuff.”)