Synopsis by Hal Erickson
The old Victorien Sardou stage play Diplomacy was exhumed in 1916 as a vehicle for the stunningly beautiful Marie Doro, who'd previously appeared in the stage version with her Sherlock Holmes co-star William Gillette. On this occasion, the principal male role of Julian was essayed by Elliot Dexter, while Doro repeated her stage characterization of Dora. The story takes place in Monte Carlo, where the impoverished Julian proposes marriage to the wealthy Dora, only to be turned down by the girl's mercenary mother. Several years later, Julian manages not only to obtain a huge fortune, but also a prominent position in the British diplomatic service. Now a suitable husband for Dora, Julian marries the girl. Alas, their happiness is short-lived: Circumstantial evidence suggests that Dora is a spy in the employ of a foreign power, obliging Julian to attempt to catch her in the act of espionage. But Julian's suspicions ultimately prove unfounded, and as the film fades he begs and receives Dora's forgiveness.