November 1963 - gray days, cold nights in Harlem. A Civil Rights firebrand, falsely accused of brutally killing three fellow activists, seeks the help of veteran investigator Daniel Leland. Yet more cold-blooded murders raise the stakes as Daniel plunges into a desperate search for the truth helped by Selena Gant, herself a black activist. Joined by a dying ex-cop and a former FBI agent, Daniel and Selena confront a ruthless organization spreading its tentacles and resisting change in an unjust society. And out of Daniel's past looms a murderous figure seeking vengeance.