Law & Order: Special Victims Unit Episode 3.08 Inheritance

A young Asian woman is severely beaten and raped at a burglary site. Benson and Stabler initially suspect rival Asian gang members, who are in dispute over the victim's loyalty. The theory is disproved when another Asian victim is found, which leads to a serial rapist (played by Marcus Chong) whose father may have committed similar crimes in his own past. The trial focuses on the impact of genetic predisposition versus environmental upbringing on the nature of violence.