The main conflict is triggered when Paul Baker discovers a letter in the mailbox notifying him that his visa is expiring, meaning he will have to leave the United States unless he can renew it or find another solution.

Issa responds by proposing marriage to Paul to help him avoid deportation, suggesting they get married so Paul can stay in the country legally.

The mailbox, which the group has not checked for months, contains important letters that reveal key plot points: Paul's visa expiration notice, postcards from Samir's parents, mail from the Bayside Stabber to Anton, and Billie’s hospital bills, all of which drive the episode's events.

Anton receives mail from the Bayside Stabber, a serial killer he has been exchanging letters with, revisiting his bizarre and tense storyline within the episode.

Billie manages to pay off her hospital bills, which were originally over $15,000, by selling jewelry with Anton's help and Issa's purchase, marking a rare financial win for her character.