Joseph Valachi is an aging prisoner in the
Atlanta Federal Penitentiary, who was imprisoned for smuggling
heroin. The boss of his crime family,
Vito Genovese, is imprisoned there as well. Genovese is certain that Valachi is an informant, and gives him the "
kiss of death," whereupon Valachi kisses him back. Valachi is also the recipient of an attempted attack in the shower days before, which might have been caused by Genovese. Valachi mistakenly kills a fellow prisoner, Joseph Saupp, who he wrongly thinks is a mob assassin. Told of the mistake by federal agent Ryan, Valachi becomes an informant, and is then transferred to Quantico to begin telling Ryan all that he knows. He tells his life story in
flashbacks, from when he was a young criminal to a gangster associating with bosses such as
Salvatore Maranzano. Maranzano initiates Valachi into the
Mafia, and then assigns
Gaetano Reina to be Valachi's boss. Valachi serves Reina well until the day that Reina is murdered in a drive-by shooting during the
Castellammarese War, forcing Valachi to hide out at Reina's house, where he meets and falls in love with Reina's daughter, Maria. At the funeral for Reina, Maranzano consoles Reina's widow by saying "I cannot bring back the dead. I can only kill the living." After the funeral,
Joe Masseria--Reina's murderer--is himself killed by
Lucky Luciano. Valachi then marries Maria after getting the blessing to do so by her mother Letizia. Valachi's rise in the Mafia is hampered by his poor relations with his
capo,
Tony Bender. Bender orders the
castration of Valachi's business partner, Dominick "The Gap" Petrilli for having relations with Genovese's wife
Anna. Valachi shoots Petrilli to put him out of his misery. The mayhem and murder continue to the present, with Valachi shown testifying before a
Senate committee. He is upset with having to testify and attempts
suicide, but in the end (according to information superimposed on the screen) outlives Genovese, who dies in prison. ==Cast==