The Dead Letter File Simon & Simon : Season 1 Episode 6
TV-PG CBS 1h 00m int(0)
Aired: January 5th, 1982 @ 8:00 PM EST on CBS
Rick and AJ receive a letter in the mail and when it arrives at the office it's 23 years after it was sent, but contains a clue to the murder of the letter writer, who died the day after he mailed it.