Beautiful, talented young pianist Helen O'Donnell appears set for a career as a performer. However, despite her outstanding record as a student at the Queensland Conservatorium, she suffers from acutely debilitating stage fright which threatens to sabotage a very promising concert career. At her teacher's urging, she seeks professional help and determines to keep performing. She is awarded a scholarship to study in London where all goes well for a time, although she misses her fianc desperately. However, Helen soon begins to sense that something is very wrong. She is, in fact, being stalked by an unknown musician who knows the pieces she is studying and models the stalking day by day upon a famous piece by Bach - the Sixth Partita. Having conquered her inner fears so courageously, Helen, alone and far from home, is now left to face the terror of a violent death at the hands of a psychopath.