Friday morning. 5 AM. Mac the Knife, who has been with the whores again, has been betrayed by whores. He is about to be hanged.
In the jail cell yet again, Mac attempts to bribe Constable Smith to let him out, but to no avail. He sings the "Call from the Grave".
Matthew and Jake visit Mac. Mac asks them for money. They scold him for spending time with Suky Tawdry rather than running away.
Jake and Matthew run off to look for money, hoping to be back before Mac is executed.
Polly comes asking for a visit with her "husband," and Smith gives her five minutes with him. Mac asks her for money, too, but she doesn't have any. She leaves.
Smith and Brown come in with some asparagus for Mac, and Mac and Brown work out their final accounts (the bribes that Mac owes Brown) before Mac is hanged.
The Peachums, Lucy, Jenny, Matthew, and Jake show up all at once. They all say their goodbyes in their own way.