They end up living in squalor in a drafty London garret. On Christmas Eve, driven to prostitution, Lulu has the misfortune of picking a remorseful Jack the Ripper as her first client. Though he protests he has no money, she likes him and invites him to her lodging anyway. Schigolch drags Alwa away before they are seen. Jack is touched and secretly throws away his knife. Inside, however, he spots another knife on the table and cannot resist his urge to kill Lulu. Unaware of Lulu's fate, Alwa deserts her, joining a passing Salvation Army parade.