Billy Behan is a poor Irish American teenager from
the Bronx in 1935. One day, he catches the attention of wealthy Jewish mobster
Dutch Schultz. Changing his last name to Bathgate after a local street, Billy goes to work for Schultz's organization, serving mostly as a gofer for Schultz. Billy is present when Schultz personally commits two brutal murders: his trusted lieutenant,
Bo Weinberg, who Schultz believes betrayed him after learning that Weinberg was secretly meeting with rival bosses, is dumped in the water wearing
cement shoes; and his top enforcer, "Big" Julie Martin, is shot dead by Dutch for stealing $50,000 from the organization's accounts, and defiantly stating that he's "entitled" to it. Despite this, Billy comes to see Schultz as a father figure, and the mob as his chance to make it big. Facing criminal charges of tax evasion in an
upstate New York court, Schultz brings his entourage, including Billy and his mistress Drew Preston (who was previously Bo's mistress), as he temporarily moves into the local community. He successfully charms the residents, presenting himself as good-natured and easygoing while doing many charitable acts, even faking conversion to Catholicism. While Dutch is attending his trial, Billy is assigned to watch Drew. His loyalties to Schultz are tested as he falls in love with the flirtatious Drew. Realizing that Dutch intends to have Drew murdered for cheating on him, Billy is able to get in contact with her real husband, wealthy Harvey, who manages to take Drew home, whisking her out of harm's way on a private plane before Schultz's men can make their move. Despite being acquitted by a sympathetic jury, Dutch is soon indicted again. After running into difficulties paying for his legal defense, he decides to have state prosecutor
Thomas E. Dewey assassinated. This request is denied by the mob's governing authority, the
Commission, out of fear that killing Dewey will bring too much heat upon the Mafia. Schultz sends Billy to bribe a member of the Commission, but the bribe is rejected. When Billy returns with the bad news, Schultz angrily blames him for not doing enough, and Billy is fired by Schultz's right-hand man, Otto Berman, who, seemingly foreseeing doom ahead for the out-of-control Schultz, lets him keep the bribe money as a gift. As Billy leaves, he is ambushed and beaten by gangsters working for Commission head
Lucky Luciano and is then forced to watch as Luciano's men storm Dutch's safe-haven restaurant where he is dining. Dutch, Berman, and his two henchmen are swiftly gunned down. Billy is taken to meet Luciano, who tells him that he knows where Billy's family lives if he ever speaks of what happened to Dutch, before letting him go, along with his envelope of cash. ==Cast==