"During a vigil calling for police reform, students from Spelman College, a historically black women's institution, are assaulted by rifle fire from a passing vehicle. On her way to interview witnesses, Detective Sarah 'Salt' Alt confronts the fleeing vehicle of the suspects, but they get away ... While other detectives take the lead on the Spelman murders, Salt is tasked to investigate the case of a recently discovered decomposed body. When she combs...