Satan in Sydney (1918)

Country girl Anne Maxwell is receiving lessons from choir master Karl Krona, who is secretly a German sympathiser. Her step-sister, Betty Benton, tells Anne's father that she overheard Anne arranging to meet up with Krona in private. Mr Maxwell visits the church along with a minister and discovers Krona trying to kiss Anne against her will. Krona is fired from his job and Mr Maxwell tells Anne to leave home. She decides to make her living in Sydney and is followed there by her lover, Will Waybrn, who saves her from a house of ill repute. War breaks out and Anne decides to become a nurse and serve overseas. Krona shaves off his mustache to pass as a Belgian and establishes an opium den in Chinatown to lure soldiers on the way to the front into deserting. He tricks Anne into entering it by forging a message from Betty Benton, but she is rescued by Will and his friends from the AIF. She eventually goes overseas to France, where she tends an injured Will; they are married and she is reunited with her father. The flirtatious Betty reforms; Krona is interned; and Anne and Will help recruiting while on honeymoon.