Spotlight: 'Abbott Elementary' star Lisa Ann Walter headlines Batavia's Comedy Vault

On Chicago-area stages this week: Comedy Vault welcomes "Abbott Elementary" star Lisa Ann Walter; Metropolis revives "Ragtime"; Goodman stages a solo show about a man grappling with pending fatherhood; and Mercury Theater celebrates moms' journeys from pregnancy tests to empty nests with the Chicago premiere of "MotherFreakingHood!"