Saturday Night Fever is a musical with a book by Nan Knighton (in collaboration with Arlene Phillips, Paul Nicholas, and Robert Stigwood) and music and lyrics by the Bee Gees.
It focuses on Tony Manero, a Brooklyn youth whose weekend is spent at the local discotheque. There he luxuriates in the admiration of the crowd and a growing relationship with Stephanie Mangano, and can temporarily forget the realities of his life, including a dead-end job in a paint store and his gang of deadbeat friends. In an effort to make it a family-friendly show, many of the film's darker elements, including references to racial conflict, drug use, and violence, were eliminated from the plot.