Max Trader is a solitary, quiet, responsible guitar maker. Johnny Devlin is a lady-killer, a drunk, and a chronically unemployed, but charming, loser. When they inexplicably awake in each others' bodies, Devlin gleefully moves into Trader's comfortable and stable existence, leaving Trader penniless, friendless, and homeless, with no place left to go but beyond the streets of Newford to an otherworld of dreams and spirits--where he must confront both the unscrupulous Devlin and his own deepest fears.