As welterweight boxer Eddie Cero makes his way home through a dark Philadelphia alley, he steps in on two punks beating up an older man. It's a favor that's going to turn Eddie's life upside down. Sal Giambroni buys Eddie a round and offers him a part-time gig helping with his private-detective work. Despite Eddie's reluctance, a few days on the job reveal that he has a knack for snooping?and then he stumbles onto a cold case involving a missing soul singer. A music lover with a budding interest in the singer's attractive, talented sister, Eddie finds himself involved in a violent, twisted story of betrayal and intrigue, power and passion?all set to the beat of rock and roll. David Fulmer's acclaimed Storyville series brought us a New Orleans teeming with jazz. The Dying Crapshooter's Blues took fans to Atlanta and the blues. The Blue Door now brings us the vibrant city of Philadelphia and the early days of its famous soul.