School dropout Art Moore is looking for a better life in Manhattan. Playing violin in a local band, he deals cocaine to pay his rent until a police raid and the drug death of a friend force him to go on the run and shelter at his aunt's house in Boston. His violinist sister, a year older and an emerging talent, breaks her arm at a crucial time when concerts and recording contracts have been signed. His guardian offers him a deal, as he closely resembles his sister and can play to the same high standard, he must impersonate his sister while she is recovering, even going to school as her. Otherwise, it is the police and a long jail sentence. The problems mount when Art, now Rebecca, discovers how much he likes his new life as a pretty and adored schoolgirl.a, discovers how much her likes his new life as a pretty and adored schoolgirl.