John Shannon’s son J. J. is a huge fan of hip-hop artist Yousef al-Salaam, formerly Deuce F., who recently converted to Sufism. The popular musician also happens to be on a terrorist watch list. When al-Salaam is shot outside a Manhattan nightclub, Shannon investigates the murder as a favor to J. J. Was al-Salaam entangled in a feud with East Coast gangsta rapper T-Mo? Or was he caught on the wrong side of Islam extremism?