Russian Doll (2001)

Harvey, a self-doubting private investigator, plans to marry his girlfriend until he is hired to solve an adultery case and discovers the adulterer is cheating with his fiancée. Lost and dejected, Harvey quits his job and wallows in booze and the occasional odd blind date. Meanwhile, Katia, a Jewish woman from St. Petersburg, arrives in Sydney after answering an ad from an international matchmaking agency. But instead of love, she finds her prospective groom dead on arrival.