Peachum is a receiver of stolen goods. He transacts most of his business with Captain Macheath, a highwayman who is loved by Peachum's daughter, Polly. Macheath and Polly marry secretly and Peachum is no longer able to use Polly in his business. He gets his revenge, helped by Jenny Diver, Suky Tawdry, and other Ladies of the Town, by informing on Macheath and collecting the reward money. Macheath is imprisoned in Newgate, which is run by the corrupt Lockit, who is in league with Peachum. Lockit's daughter Lucy becomes infatuated with Macheath and enables him to escape by stealing her father's keys. Through the inebriated Mrs Diana Trapes, he is recaptured and is only saved from being hanged by the mock intervention of a beggar and a player. After all, it would never do to let such a fine hero die.