The older sister doesn't want to go out, but she obeys her younger brother's orders because he has a stronger sexual desire than most. He makes her go rent adult videos, and in the end, he uses her to satisfy his sexual desires by giving her handjobs and blowjobs... But the younger brother is not satisfied with that, and his demands become more and more extreme, and he tells his older sister that he wants to have sex with another woman... The older sister calls her coworkers, and as instructed by her brother, gives them drinks laced with sleeping pills, and forces them to sleep. Then the younger brother appears and rapes the defenseless women as he pleases!