Jamaica Plain actor Nick Osborne will star in Moonbox Productions' upcoming production of "Amadeus" starting Nov. 25. Amadeus is an extraordinary meditation on art, love and the human condition. The year is 1781, and the place is Vienna. Joseph II is Emperor of Austria, and Vienna's world of music is ruled by the precise and pedantic composer Antonio Salieri. Then the famous Wolfgang Amadeus Mozart arrives, throwing Salieri's predictable court life into chaos.