A restaurant cashier, who has a mutual attraction to the restauranteur, has a secret passion for dance. As soon as she finishes work she is off down to the dance studio for a practice. She has a chance meeting with a handsome impresario, who promises to make her into the greatest dancer the world has ever known.

Eva lives in the sinister Tower with her father, a mad inventor, and her grandfather. The aviator Wilfred Durian and his lovely wife live nearby in the town. But Durian's famous flight across the Australian desert was not all it seems... and when his 'dead' partner Arved Holl is rescued by Eva and comes to claim his former fiancée's hand, the whole house of cards is about to come tumbling down. Meanwhile, Eva's own family history is not quite as she had always believed...