The Power of the Dog

Phil and George are brothers, joint owners of the biggest ranch in their Montana valley.
Phil is tall and angular; George is stocky and silent. Phil is a brilliant chess player, a voracious reader, an eloquent storyteller; George devotes himself to the business.
Phil is a vicious sadist, with a seething contempt for weakness to match his thirst for dominance; George has a gentle, loving soul. They sleep in the room they shared as boys, and so it has been for years.
When George unexpectedly marries a young widow and brings her to live at the ranch, Phil begins a relentless campaign to destroy his brother's new wife. But he reckons without an unlikely protector.