"The Suitcase" is the seventh episode of the fourth season of the American television drama series Mad Men, and the 46th overall episode of the series. It aired on the AMC channel in the United States on September 5, 2010.

"The Suitcase" is almost entirely centered on the characters of Don Draper (Jon Hamm) and Peggy Olson (Elisabeth Moss), and the relationship between the two. It was widely lauded by television critics, with some declaring it the show's best episode up to that point.

Jon Hamm and Elisabeth Moss submitted the episode for consideration for their nominations for the Primetime Emmy Award for Outstanding Lead Actor and Actress in a Drama Series, respectively, at the 63rd Primetime Emmy Awards.

The episode focuses almost entirely on the characters of Don Draper (Jon Hamm) and Peggy Olson (Elisabeth Moss). A deadline is looming over a campaign for the suitcase manufacturer Samsonite. As the rest of the office leaves to follow the May 25, 1965,Ali vs. Liston fight, Don makes Peggy stay behind to work on ideas. He knows she has plans for a romantic dinner with her boyfriend Mark (Blake Bashoff) at the ritzy restaurant The Forum of the Twelve Caesars. Mark has invited Peggy's family and roommate along as a surprise, and when she tells Don, he says she can go.

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