A serial killer known as Red Smile is slaughtering his way through California, taunting the police with his riddles. Brian Warner and his partner Marcus James Reed are the two cops trying to take Red Smile down.
Brian Warner is an L.A.P.D. police detective, martial artist and the definition of no-nonsense cop. He is also a masked vigilante known as Black Shadow who hunts killers and does what the police can't: He works beyond the law to protect it. Vigilantism is highly illegal in Los Angeles, Detective Marcus Reed, Brian’s partner on the force and lead detective, tolerates Black Shadow for two reasons: He can do what no normal police officer can do and he also happens to be Brian's best friend...