The Struggle(1913)

Dr. Sharp and his wife, Gretchen, live happily together in a little western town until the advent of the doctor's brother, Fred, who comes from the east to spend his vacation near his brother. He meets the doctor's wife and immediately falls in love, but visits her only when he knows his brother is away. The doctor learning of Fred's visits, shoots him. He repents, however, when he sees his brother's serious condition and does all he can to restore him.