For nearly eight terrifying months, cat owners on the South Coast were terrorised by an unknown killer, with much-loved pets turning up dead or terribly injured. This documentary tells the incredible story of how the Brighton cat community came together to catch the attacker and how sleuthing owners devastated by the death of their cat made a remarkable breakthrough by finding the first images of the killer. The documentary also looks at the Croydon Cat Killer and how animal investigator Boudicca Rising is continuing the investigation despite the police closing the case.