Digging Up the Marrow (2015)

A documentary filmmaker turns his lens on an enigmatic conspiracy theorist who claims he's found the entrance to a vast underground city populated entirely by monsters.

Genres: Horror

What to watch after Digging Up the Marrow

• The Hole (2009) — Same feel: mysterious, scary
• Hatchet III (2013)
• Nightmare Cinema (2018) — Mick Garris worked on both
• Burying the Ex (2014) — Two steps away in the credits
• Grave Encounters (2011) — Same feel: mysterious, scary
• The Gathering (2003) — Same feel: mysterious, scary