At Dawn (1914)

Sykes, an American engaged to a poor girl, goes to the Philippines as a teacher, and the girl stays behind to await their marriage. Sykes, after some time has passed, has succumbed to the tropic influences, and is living with a native girl, when one day he hears from the girl back home that she is coming to join him and that she will arrive at dawn next day. An aunt has died and left her a lot of money. Caring more for this coin that the girl, Sykes tries to get rid of the native girl, but she makes a row, and he in fear of losing his girl and her cash, poisons the native girl, who dies. He is about to get rid of the body when a young lieutenant of the U.S. Army shows up with his sergeant, inquiring the way to the trail of Indians, and becomes suspicious of Sykes' uneasiness and finds the dead girl.