Beaten up, bruised and afraid, young author Klas Östergren hides out in a Stockholm apartment, writing the story of its vanished inhabitants: the flamboyant, charismatic, enigmatic Morgan brothers. It begins one year earlier. Klas is rooming with Henry Morgan, a boxer, piano player, composer, bartender and old-fashioned gentleman with a Gatsby-like capacity for turning life into a feast. But behind his glittering façade lurks a darkness - a secret, forbidden love. Together the two friends lead the high life in Stockholm until the day Henry’s younger brother Leo shows up. An infamous poet, political provocateur and drunk, Leo quickly drags them into a scandal involving illegal weapons and gangsters, and soon the three men find themselves trapped in a life-threatening plot.