Beneath the teeming streets of California's largest city lies a dark history of serial killers, riots and strange encounters. Spirits are said to mingle with the tourists on Olvera Street, and there are rumors that a curse placed on Griffith Park still causes deaths to this day. Do the victims of a massacre at Union Station still haunt the halls there, and does Dodger Stadium host the shades of the residents it displaced during its construction? Even the old Los Angeles Zoo is said to be a hotspot of animal apparitions reluctant to move on. Author and paranormal historian Brian Clune explores the spooky side of Los Angeles.