A gangster family epic set in 1919 Birmingham, England and centered on a gang who sew razor blades in the peaks of their caps, and their fierce boss Tommy Shelby, who means to move up in the world.

Revisits heart-pounding cases of deception that ended in murder at the hands of a trusted family member, co-worker, lover, or friend. Told through the lens of the fictionalized, first-person perspectives of the victims, the viewer are treated like the only confidant they have left.