In the early 1950s, Eddie Mannix is busy at work trying to solve all the problems of the actors and filmmakers at Capitol Pictures. His latest assignments involve a disgruntled director, a singing cowboy, a beautiful swimmer and a handsome dancer. As if all this wasn't enough, Mannix faces his biggest challenge when Baird Whitlock gets kidnapped while in costume for the swords-and-sandals epic "Hail, Caesar!" If the studio doesn't pay $100,000, it's the end of the line for the movie star.