The arrest of a notorious drug dealer leads to the detectives reopening the murder of a woman who worked for him in 1998. Scotty was working undercover at the time, but never talked about it because he got too close to the victim.
- Kathryn Morris as Lilly Rush
- Danny Pino as Scotty Valens
- John Finn as John Stillman
- Jeremy Ratchford as Nick Vera
- Thom Barry as Will Jeffries
- Tracie Thoms as Kat Miller
- Benjamín Benítez as Hector
- Alex Fernandez as Father Peralta
- Lela Loren as Ana Castilla
- Gonzalo Menendez as Ramiro
- Marisol Ramirez as Ceci
- Marco Rodriguez as Manny Fernandez
- The exterior of the church of Father Peralta is also seen in the episode of Season 7 "Two Weddings" but with different interiors.
- Ceci is the one of the only two female killers in Season 3, the other being Deidre Miller.
- The Hooverphonic song "Mad About You" which is used in the flashback where Scotty is driving with the victim is a mistake, as the song wasn't released until 2000. The flashback was in 1998.
- Massive Attack "Teardrop"
- Hooverphonic "Mad About You"
- Control Machete "Grin-Gosano"
- Mono "Life in Mono"
- Morcheeba "Let Me See"
- Control Machete "¿Comprendes Mendes?"
- Closing Song: Enigma "Return to Innocence"