Zak and the crew investigate a Utah mansion soaked in tragedy and bloodshed. Unexplained paranormal activity has the new owner desperate for answers, and the team is concerned that a portal to hell has unleashed a negative entity into the home.

The crew is called to the Los Angeles Police Museum to confront a dark presence that has invaded the once-thriving precinct. Zak believes the disturbing activity is linked to the macabre artifacts from some of LA's most notorious crimes.