Marie is kidnapped and taken to Panama by a lecherous sea captain, who abandons her when she will not give in to his desires. She becomes a prostitute in order to earn money to return to France; meanwhile, she is unwittingly involved in an espionage plot. She spends most of her money to care for a dying black man whom no one else will tend to. When she does finally save enough money for a steamer fare, she is murdered by a spy who fears discovery the night before the boat sails.