It is the Christmas Holidays and reformed thief, Boston Blackie goes to Castle Theater to pick up players who will perform for prisoners that are still in prison.
Boston Blackie, in the 11th film of the Columbia series, indulges in some wit-trading with a squirmy spiritualist who deals in blackmail, murder and the occult.
On a voyage from Europe to the U.S., Desselway meets and falls in love with Diana Curran. Diana has a dark past, however -- she is married to Wrenshaw, a criminal known as "the Hawk.
Eric "Anker" Ankerstjærne and his wife are like night and day. One day, the gap between the couple becomes too wide – Naomi, who is a passionate violinist, skips town, leaving him alone with their daughter.
Twin brothers are serving in the French army during the Great War. Jacques, a private, leads his brother's company to attack when Honoré, a lieutenant, panics and flees.
While studying in Paris, Princess Oluf of Kosnia (Andree LeJon) befriends an American girl, Ruth Townley (Clayton), and gives her a locket bearing her name and the royal coat of arms.