While on a botanical expedition in Tibet Dr. Wilfred Glendon is attacked in the dark by a strange animal. Returning to London, he finds himself turning nightly into a werewolf and terrorizing the city, with the only hope for curing his affliction a rare Asian flower.
During World War II, an insubordinate fighter pilot finds the shoe on the other foot when he's promoted.
In 1948 rural America, two stepbrothers compete for the same gal and the younger brother buys two untamed mules for work projects while the older brother tries to sabotage him.
Philanthropical druggist Daniel Abbott, occasionally robs the rich to take care of the poor, goes to court with his young ward, Jimmy Nolan. In the courtroom Daniel meets Mrs. Warren, who, despondent over her inability to care for a newborn baby, has been charged with attempted suicide. Daniel takes mother and daughter under his wing, watching with pride as the girl, Helen, and his ward, Jimmy, grow to a tender adolescence. Sylvester Doane, a tenement owner, falls in love with Helen, and Daniel makes plans to rob him. Jimmy learns with shock of the plans and goes to Doane's apartment to prevent the robbery. Jimmy takes the gems to forestall his father, but he is found with them in his possession and put in jail.
A strange animal attack turns a botanist into a bloodthirsty monster.