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After witnessing a traumatising attack in her neighbourhood, a young woman investigates for herself - putting her life at risk.

Hannah escapes her attacker and tells Tony she was targeted because of what she saw on CCTV, and his curiosity is aroused when she shows him the photo of the discarded T-shirt and even more so when he sees the CCTV footage.

After her attack, and armed with information from Warden, Hannah goes after Max Carlton.

DS Warden puts the pieces together, and discovers the identity of the killer. Hannah chooses to ignore Warden's warning, and take matters into her own hands.