When decapitated cats start appearing in South London, animal rescue duo Boudicca Rising and Tony Jenkins spring into action. They’ll do whatever it takes to get to the bottom of this mystery.

It’s 2015 and the two volunteers running the South Norwood Animal Rescue and Liberty (SNARL) Facebook page, stumble upon a vet’s poster telling locals to keep their pets safe as there have been a series of “mutilations” in the area.

When Boudicca and Tony share the vet’s warning, they’re flooded with messages from pet owners saying something similar has happened to their cats.

Boudicca and Tony convince the police to launch Operation Takahe, an investigation into the “Croydon Cat Killer.”

Far from stepping back, Boudicca and Tony find themselves at the centre of the operation; investigating “crime scenes,” breaking bad news to pet owners and being interviewed by press. The case takes over their lives.

Presented and produced by Natasha Fernandes