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Bound for Africa the next day, Captain Ferréol visits the private rooms of Gilberte Boismartel, his former sweetheart who is married to a French magistrate, to return her love letters.  As he leaves, he sees Marcasse, a watchman, kill Rochemore, the man who stole his wife.  Marcasse defies Ferréol to report the murder because he has seen Ferréol visit Gilberte.

In Africa Ferréol hears that Jérôme, the wayward brother of his sweetheart, Thérèse, has been accused of murdering Rochemore; he rushes back and confesses to the murder to save Jérôme, but a flaw in his statement proves his innocence. 

Notes
The film was based on the novel Ferréol by Victorien Sardou (Paris, 1875).