A botched Christmas Eve robbery leads to disaster for a police officer reconnecting with his estranged mother, along with an erratic photographer, his vindictively murderous fiancée, her secret lover, and a strung-out mall Santa.

The Curtis' family is selected to test a new home device: a digital assistant called AIA. AIA learns the family's behaviors and begins to anticipate their needs. And she can make sure nothing - and no one - gets in her family's way.