Brass, Catherine, Grissom and Nick work the case of a female victim found in an apartment building with a gun shot wound. Drops, a nightclub promoter and old acquaintance of the team, becomes a person of interest during the investigation, even though he is still in jail. Nick and Brass take him out of prison for a ride to track down the perpetrator. As they go from dead suspect to dead suspect, it becomes apparent that the killer is already one step ahead of them.