The show's title, "House of Cards," refers to the fragile and ephemeral nature of Underwood's power, which is built on manipulation, deceit, and violence. As the series progresses, Underwood's empire begins to crumble, illustrating the inevitability of collapse when power is built on shaky ground.
The show asks what you are willing to sacrifice for the top job. For the Underwoods, the answer is everything—friendships, reputations, and even human lives.