Neverwhere

This six episode series tells the story of a corporate drone, Richard Mayhew , who helps a wounded stranger bleeding on a London sidewalk, much to the dismay of his high maintenance  girlfriend. The stranger, Door, is not a young homeless woman, as she appears, but a fugitive aristocrat with special abilities from the world of "London Below".

Richard is further confused by the arrival of two menacing thugs, Mr. Croup and Mr. Vandermar, who claim to be searching for their "little sister". They search his apartment, and cut the cord on his phone before leaving him with a flyer and several thinly veiled threats.

As his own personal life starts to crumble around him, Richard's fascination with Door and the new found excitement in his life compel him to follow her back to "London Below". There he meets up with a rogue, the  Marquis de Carabas, and an Amazonian warrior named Hunter, who guide Richard and Door through the bowels of "London Below" in search of those who murdered Door's family ten years earlier. Richard's adventures make him question his whole life, and challenge him to fight and overcome problems of spiritual and world shaking importance.