Tuesday, June 4, 1968: the California presidential primary. As day breaks Robert Kennedy arrives at the Ambassador Hotel; he'll campaign, then speak to supporters at midnight. To capture the texture of the late 1960s, we see vignettes at the hotel: a couple marries so he can avoid Vietnam, kitchen staff discuss race and baseball, a man cheats on his wife, another is fired for racism, a retired hotel doorman plays chess in the lobby with an old friend, a campaign strategist's wife needs a...