Law & Order - Season 14 Episode 10 : Ill-Conceived

The owner of a clothing company with alien immigrant workers is found murdered which sends the detectives on a search for an unidentified evening caller whose girlfriend, also a worker in the factory, recently gave birth. Upon discovery that the victim was also the baby's father, the boyfriend is arrested with the motive being an office affair until the victim's widow discloses that it was a surrogate arrangement.