Kimberly Furness and Eddie Staver IIIPlaywright John Patrick Shanley's Danny & the Deep Blue Sea is an alternately romantic and volatile two-character drama that finds Roberta, a 31-year-old, jobless mother of a troubled teen, forging a fragile bond with Danny, a 29-year-old truck driver nicknamed "The Beast." And while watching the Curtainbox Theatre Company's current presentation of this 1984 offering, it probably won't take you long to realize that co-stars Kimberly Furness and Eddie Staver III aren't really acting in the production; they're dancing.