Story of manic schoolgirls who are more interested in racing form than books as they try to get-rich-quick, aided by the head-mistress' brother, played by Alastair Sim, who also plays the head-mistress.
The schoolgirls of St. Trinian's are more interested in racing forms than books; as they try to get rich quick, they are abetted by the headmistress' brother.