It's another blistering summer in New York City, and a sweltering heat wave stifles the area. Hostility between the Hasidic and Black communities has been steadily increasing since a tragic incident left a Black teenager dead. When two rabbis are killed in a gruesome attack on their synagogue, it has all the signs of retaliation. The entire city is on edge. Through it all, Agent Janet Maclin's dreams of becoming the FBI's first female director come crashing down when she receives some devastating news. In spite of it all, she's determined to help NYPD detectives Quincy Cavanaugh and Phee Freeman find the rabbis' killer as more hate crimes put the city on the brink of all-out war. As the body count climbs with the temperature and the tensions, time is running out for Maclin in more ways than one.

NYPD detectives Phee Freeman and Quincy Cavanaugh are called to the scene of a brutal murder, where Freeman learns his older sibling is the victim. At first, the slaying looks like the random act of a vicious killer, but both detectives and FBI agent Janet Maclin soon discover this is something much more sinister. Similar ritualistic murders throughout the city leave the three investigators no choice but to join forces with Dr. Daria Zibik, a brilliant but deranged Satanic cult leader. Phee and his partners must do everything they can to stop the bloodshed and determine if the evil they are hunting and the psychopath they are trusting could actually be one and the same.

Every 10 years, for the past 30 years, a dozen clergymen are killed, brutally murdered in twisted scenes emulating the deaths of Jesus and his disciples. Now, "The Martyr Maker" has set his mark on New York City. LAWS OF DEPRAVITY follows two NYPD detectives and an FBI agent as they race to catch a serial killer before he completes his last cycle of kills and disappears forever.