The Hothouse follows the complicated lives of five 20-somethings who share a run down inner-city Wellington dwelling.

Cops Daniel, Ruth and Neru, and lawyer Isobel are long-term flatmates. When Levi Wise, a charming rogue who's secretly on the wrong side of the law, joins the house, the delicate balance of the flat is upset in one swoop. The black and white line between right and wrong becomes increasingly blurred with shades of grey, as the 'upholders of the law' struggle with their inextricably entwined professional dilemmas and personal lives.