The three sadistic sisters living in a traditional old house lure salesmen to their home every day, using traps to capture and imprison them. They forcefully dominate their victims through brutal means, breaking their resistance until they become obedient licking dogs for masturbation. Once fully broken into perfect licking pets, the sisters grow bored and transform them into human toilets. A hose is taped into their mouth, forcing them to drink urine mercilessly day after day. Later, a mouth gag keeps their jaws open as feces are stuffed inside, then sealed shut with tape and left until completely consumed. Fed the sisters' feces and urine three times daily as meals, these human toilets incur no food, toilet paper, or water expenses.