Duplex is a 2003 Comedy Film staring Ben Stiller and Drew Barrymore, and Directed by Danny DeVito.

It features a young couple who move into a duplex in Brooklyn, where an old tenant gives them hell. The tenant sends both the couple on a myriad of errands, keeps them up all night (every night), gets them fired from their jobs, and lowers the value of the property with each passing day.

Since they can't get rid of the sweet old lady because of Rent Control, they try to coerce her out of the apartment, eventually turning to less friendly methods... and getting clumsier and clumsier the more they escalate.

Tropes used in Duplex include: