Off-Broadway offered double bills by two talked-about playwrights :
Garden District comprises two Tennessee Williams plays laid in New Orleans. Something Unspoken, dealing with an uppity society woman and her secretary-companion, is a warm-up piece that leaves the spectator cold. Suddenly Last Summer is a vivid display of Williams' unique virtues and persisting excesses. A kind of psychological suspense piece, it works backward from the knowledge of a self-luxuriating "poet's" death to the nature of it. His rich, ruthless mother had long shared her son's dubious traveled life, but when she had a slight...