Dr. George Baylor, the serial killer who escaped after murdering three coeds in LA, resurfaces on the East Coast. This time, an entire family has been slaughtered in their home outside Philadelphia, and the doctor’s fingerprints are all over the crime scene. With panic rising, the FBI seeks LAPD detective Matt Jones’ help, and the hunt for this brutal mass killer is on. But so is the hunt for the man who paid to have Jones shot. When a second family is found murdered, the search for the killer becomes frantic, and Jones’ shocking personal history explodes before his eyes.

On Detective Matt Jones’ first night working Homicide in LA, he’s called to investigate a particularly violent murder case: a man has been gunned down in a parking lot off Hollywood Boulevard. Driven by the grisliness of the killing, Jones and his hot-tempered partner, Denny Cabrera, jump headfirst into the investigation. But as Jones uncovers evidence that links the crime to a brutal, ritualized murder that occurred 18 months prior, he begins to suspect that there’s more going on beneath the surface.

Detective Lena Gamble gets called to the scene of a double murder at Club 3 AM, the latest A-list hangout for Hollywood celebs. The shocker comes when she sees 25-year-old victim Jacob Gant, acquitted just days ago of murdering his 16-year-old neighbor, after L.A.'s latest trial-of-the-century.