Mari has a horrible past, having been raped by a black man. Working as an undercover investigator, she infiltrates a multi-tenant building to investigate a black drug dealer ring, only to be attacked by a group of black men and raped to a pulp. The rape continues. Just when it seems she has managed to escape, she is captured by the black men again and forced to take drugs. Driven to a mental breakdown, Mari begins to take the black men's dicks, which she detests...