Bruce Wayne is still locked up in prison, paying for his abuses against the city of Gotham and trying to make up for himself in the eyes of his former allies. But he has now established an increasingly strong relationship with his former enemy, Jack Napier's ex-partner, Harleen Fifteenl. As a young mother, she is contacted by the GCPD to support her on a case that will bring back to the surface the still perennial memories of her criminal past.