Drawn from evidence that the 9/11 attacks were planned in student apartments in Hamburg, "The Friend" traces the lives and friendship of two college students. It addresses the cultural divisions facing us in the 21st century and the spread of terrorism that can foment and stem from these divisions. Yunes, the Yemeni roommate of German student Chris, leaves without warning or a forwarding address. A few days later, the 9/11 attacks occur. Chris and his companions begin to wonder: was Yemeni a terrorist?