Ambition (1916)

Assistant district attorney Robert Powers learns that political boss John Moore has chosen another candidate for promotion over himself, Powers invites Moore to his Long Island estate for the weekend and urges his lovely wife Marian to entertain Moore to win his favor. After Powers arranges for Moore to be injured while trap shooting so that he has to spend weeks at their home, Marian nurses Moore and they fall in love with each other. When Marian realizes that her husband cares more about his career than their marriage, she plans to leave with Moore, but her daughter Betty intervenes and pleads with Moore not to take her mother. Realizing that Marian would have to sacrifice Betty if they went off together, Moore leaves alone. At the end, Marian orders her husband out of their house and lives independently with Betty.