Polly Gray and Thomas Shelby in “Unfinished Business”

It starts when you stop. When you rest. Could be nerves. The War. Might be the alcohol. Blue devils, they call that.

Thomas Shelby

Yeah, well yeah, yeah. It's the fucking booze. It's the booze, the booze got hold and the booze got in me bones.

Lizzie wants to see you.

Thomas Shelby

No.

Tom she's showing.

Thomas Shelby

I don't want to see Lizzie, Pol.

Shit, maybe it's in us? Cause were Shelbys. It's in our gypsy blood. We live somewhere between life and death. Waiting to move on, and in the end, we accept it. We shake hands with devils, and we walk past them.