Air Date: October 9, 2013 at 10:00 PM on NBC | SLEEPING DOGS (TV-14) IRONSIDE AND HIS TEAM TRY TO TRACK DOWN A SERIAL STABBER—Teenager Nicole Holt (guest star Skyler Day) and Chris Ellis (guest star Brad Beyer) are questioned after witnessing a slashing, but the duo lies about how much they saw -- and who they really are. While Virgil (Pablo Schreiber) and Teddy (Neal Bledsoe) are on the serial killer’s trail, Ironside (Blair Underwood) and Holly (Spencer Grammer) investigate a case-within-a-case when they uncover the teenager went missing as a child. Kenneth Choi and Brent Sexton also star.