Cassie has been transported to Australia for a crime she did not commit. She is given "assignment" in the home of the charming Doctor Rutherford, where she will toil away for the duration of her 20 year sentence. He is stranger and darker than first she realized. With nothing to do but study him, Cassie becomes entranced by the mysterious doctor, keeping a journal record of her increasingly sensual thoughts. But the doctor already has a lady, and surely has no interest in his convicted servant. When Dr. Rutherford begins to notice her, two new hopes are aroused in Cassie. One is that he may be able to help prove her innocence. The other hope ... is one of passion, one so sinful, so impossible, she dare not yearn for it aloud.