Not to be confused with Rupert Holmes’ 2002 one-man play about comedian George Burns, this Ralph Pape work has its own interesting history, first with an off-Broadway run of 400 performances in 1978, then with a 1979 staging by Chicago’s still-budding Steppenwolf Theatre Company — direction by Austin Pendleton and a cast featuring John Malkovich, Joan Allen and Glenne Headly — that helped the progressive ensemble cement its growing rep. (The play was later adapted for TV in 1983 and won an Emmy with virtually the same cast.) It’s a comedy-drama set in New York City in 1976, where five uncertain individuals gather in a Greenwich Village apartment on the eve of their high school reunion. Conversation — and pot — is ignited, and as the smoke thickens, we receive a profile of the dreams, insecurities and favorite TV shows of these soon-to-be 30-year-olds, who are each unsure about where their lives are going. Street Theatre Company stays busy with yet another opening, and director Cathy Street has gathered a promising cast featuring three talented men with good local track records — Jeremy Maxwell, Ryan Williams and Alan Smith — plus two newer female faces who have recently appeared on Nashville stages, Melissa Silengo (Chlamydia Is Not a Flower) and Laura Crockarell (The Memorandum). Prepare yourself for the baby boomer stampede at the turnstiles.