Concert pianist Felicity Crichton [Lissa Campbell] (Margaret Lockwood) decides to leave her successful music career behind and devote herself to something more directly connected to the British war effort. After announcing her retirement from the concert stage, she applies for a position with the RAF as a Women Airforce Service Pilots, but is rejected for health reasons. Soon after, she learns from her doctor that she is suffering from a heart condition and that she does not have long to live.