"Envelope" is a drama mystery starring Kevin Spacey. He plays a Russian named Evgeniy. The time period is 1985. Evgeniy has an odd hobby in which he sends out letters to fictitious people in real countries. The letters always come back as undeliverable, but that's perfectly fine to him because he loves the idea of knowing that his letter went somewhere outside of the USSR and came back. Things get mysterious when someone from New Zealand responds to a letter of his.