Lynch whipstitches around the familiar contours of period suspense with cheerful assurance and hints of a style which could be applied to fresher material. Caroline, our beleaguered one, is on her way to the palazzo of old, blind Count Bruno in 18th-century Italy, with her twin sister Kate, who is about to participate in an in-name-only marriage with Leoni, Bruno's son. But, after a carriage accident, Caroline awakens to find her sister gone and herself with a new identity: to the servants, her aunt, and all Count Bruno's family and retainers, she is ""Kate."" Forced to accept this maddening turn of events, Caroline marries Leoni, but she continues to hunt for Kate who, she reasons, has eloped with a London artist. An art swindle, a murder, and the way of true love are discovered, along with Kate-and what a long denouement! But you won't mind; it's all fast, feathery, and noncaloric.