The musical Mack and Mabel tells the tempestuous love story of two of the greatest legends to emerge from Hollywood’s silent movie era in the 1920s, director Mack Sennett and his star, comedienne Mabel Normand. From the moment Mabel first arrived on the set of Mack Sennett’s latest film, she catches his eye and soon afterwards his heart. She becomes his biggest star, but ambition, dalliance and the inevitable threat posed by talking movies puts unbearable pressure on their relationship.