Law & Order: Season 4, Episode 10

4 - 10: The Pursuit of Happiness

When Billy Cooper is found murdered at the meat-packing plant where he works, Logan and Briscoe turn their eye to his wife Irina, a green card bride from Russia who had married Cooper in the hopes of a better life but had fallen in love with a co-worker and lost favor with her husband, who repeatedly threatened to send her back.