Miss Wonderly's sister ran away from New York with a fellow named Floyd Thursby. They're here in San Francisco. Miss Wonderly is seeing Thursby and has a date to meet him tonight. Maybe he'll bring the sister with him. The chances are he won't. Miss Wonderly wants us to find the sister, get her away from him and back home...If - after we've found her - she still doesn't want to leave him, well, we have ways of managing that.