Pariah (1998)

"Love. Hate. Revenge. Destruction"

Plot Summary

An interracial couple is attacked and the woman is gang-raped in a random attack. This prompts the woman to commit suicide and the man decides to seek revenge from the inside by joining the gang. However, once inside he learns of the reasons (poverty, social rejection) for their existence and starts developing a kinship until he is asked to kill someone to prove his loyalty.