Disappeared (S08E19)

Detectives Briscoe (Jerry Orbach) and Curtis (Benjamin Bratt) try to unravel the mystery of a high-class couple who disappear from their apartment. When their key suspect also vanishes, their only lead is a man cautious about divulging any information before he makes a deal with Ross (Carey Lowell). Facing a choice that could cost Ross her reputation, McCoy (Sam Waterston) and Ross try to honor their informant's request – and serve justice at the same time. (iTunes)