||Bonnie’s parents are very strict, so she sneaks out to date Bill. He proposes marriage; when Bonnie’s parents find out, they beat her. Her “father” says he is really her uncle: her real father was a murderer and her “mother was a--well, no better!” They fear Bonnie has “bad blood.” Bonnie breaks up with Bill. Bill brings Prof. Sternberg, “head of the psychiatric department at State University,” to tell Bonnie “your fears are absolutely groundless! There is no such thing as ‘bad blood’…crime…is caused by environment…” Bonnie’s adoptive parents apologise and Bonnie can now marry Bill.