Mrs Lovett had a pie shop, and was quite a peculiar woman. He worked for Sweeney Todd, the killer barber, Obviously, Sweeney Todd hated Judge Turpin's guts for what he did to him and his wife, Mrs. Lovett made pies from the remains of the bodies Sweeney killed,making it clear that he only killed those who had been cruel to him, or Turpin's helpers. You happen to walk into the pie shop under Sweeney's barbershop, and you see Mrs. Lovett working fully you have her pie pies