Out in the moonlit waters of Waikiki, astronomer Dr. Darli Grenlane, is curious and suspicious of Cortz, the very human-like alien from the planet Uraticus.United States Navy officials know about his spacecraft. A net is closing around him. He must gain Darli's help. By faking a serious fall, he manages to get into her home and, during his convalescence, into her heart. And then the world turns upside down and all hell breaks loose...