In the summer of 1921, Roscoe “Fatty” Arbuckle was on top of the world. Paramount Pictures had paid him an unprecedented $3 million over three years to star in 18 silent films, and he’d just signed another million-dollar contract with the studio. The portly comedian’s latest film, Crazy to Marry, was playing in theaters across the country. So his friend Fred Fischbach planned a big party to celebrate, a three-day Labor Day bash at the St. Francis Hotel in San Francisco.