Desc: The Heart of a Siren: Directed by Phil Rosen. With Barbara La Marr, Conway Tearle, Harry T. Morey, Paul Doucet. Isabella Echevaria, whose beauty has won her a legion of disappointed admirers, arrives with her retinue of servants at a fashionable French hotel, and there she encounters Gerald Rexford, a young Briton who remains indifferent to her charms. Isabella becomes determined to bring Gerald to his knees and follows him to Paris, where she arranges a meeting with him through a mutual acquaintance. Gerald falls in love with her, and Isabella finds that she truly loves him in return. They share their idyllic love in a small house in the country until Gerald's mother persuades Isabella that Gerald will never find lasting happiness with her. Isabella then arranges with John Strong to make Gerald jealous by allowing Gerald to find her in John's embrace. Gerald discovers them together, suspects the worst, and leaves Isabella; Strong then has a change of heart and tells Gerald of Isabella's noble deception. Gerald returns to her in time to prevent her from poisoning herself and declares his intention to marry her immediately.