New Amsterdam - Season 1 Episode 5 Keep the Change Live like there's always tomorrow.
Overview: John alongside Eva investigates the case of homeless man who died of overdose. The best friend of the homeless man believes it was a homicide. While searching the belongings of the dead homeless man, John gets hold of an expensive guitar in his locker. In the meanwhile, John remembers when he was an addict and entered a 12-step program in 1964 after being drunk too many times.