"The Cover-Up" is the 24th episode of the sixth season of the U.S. comedy series The Office and the show's 124th episode overall. It aired May 6, 2010 on NBC.The series—presented as if it were a real documentary—depicts the everyday lives of office employees in the Scranton, Pennsylvania, branch of the fictional Dunder Mifflin Paper Company. In the episode, Michael suspects Donna is cheating on him, and he pays Dwight $50 to investigate.