A major focus of this episode is time in prison.
That episode aired in 2014 and featured the "5 Chefs Compete" challenge where contestants faced the "Taste It, Now Make It" challenge. was the eventual winner of that season. If you'd like, I can provide a detailed breakdown of the: [S12E18] Hell's Kitchen
The Unsub, John Pringle, is a "blood drinker" who suffers from a delusional belief that consuming the blood of young, healthy victims will cure his own terminal illness. A major focus of this episode is time in prison