Serial Killer Support Group follows the journey of a devilishly dark and mysterious, yet highly intelligent character, Preston Blake - who collects some of the world's deadliest serial killers and brings them together in an Alcoholic Anonymous styled support group. He designs for the predators-elite to learn from each other to evolve and enhance their skills to be more efficient killers. ​

Preston also has nefarious designs for a young innocent church volunteer, Grace Bennet. Disturbed by the imbalance of her purity, he designs to take her on a wicked journey of emotional torture and violation.

Unbeknown to the group predators, they themselves are being hunted by an unstable vigilante. Detective Gabe Bastien, himself the survivor of an attempted murder from a serial killer, is on a mission to hunt killers and deliver his own violent justice.