Created by Rick Compton and Betsy Bennett — who also star in the production — Assisted Living: The Musical begins as the show’s host couple enters heaven, suspecting their son pulled the plug to get his hands on Dad’s vintage Corvette. They don’t seem to mind. Instead, the couple fondly remembers Pelican Roost, where the various characters sing and dance, revel and kvetch, celebrate and bloviate their way through later life.