1978
Martin is in his hotel room, when a stranger faints on his doorstep. By the time Martin returns with Shoshana and Menashe, the stranger disappears, leaving behind a letter in which most of the words are missing. Martin, Shoshana and Menashe try to decipher the letter, by making initial theories and educated guesses and testing them.
1978
Menashe suggests to place the letter on source of heat. Doing so reveals some of the missing words. Martin, Shoshana and Menashe continue deciphering the letter, find additional details about the stranger and his mission, and eventually solve the mystery.