As a favor to married best friend Ethan (David Wenham), soft-boiled Aussie private eye Harvey (Hugo Weaving) grudgingly agrees to wed Ethan's mistress -- a spirited Russian named Katia (Natasha Novak) whose visa is about to expire -- in this quirky romantic comedy. It seems that Ethan isn't ready to say goodbye to Katia ... or to leave his wife (Rebecca Frith). But all bets are off when Harvey finds himself falling in love with Katia.