In June 1959, Louis Simo (Adrien Brody), a Los Angeles private investigator more interested in generating an income than in devotion to his clients, is spying on the wife of a man named Chester Sinclair to find if she is cheating. On a visit to his own ex-wife Laurie, Simo learns that his son is upset over the recent death of actor George Reeves, who played Superman on television. Reeves was found dead inside his Beverly Hills home with a gunshot wound to the head, which the police ruled as a suicide.