An amusing look at lives of cats who make their owners lives hell! Cats are loveable, often hilarious but sometimes... complete psychopaths! Inter-cut with hilarious cat clips and with analyses from a vet and a cat behaviourist, we see cats in all their bonkers glory. In the UK alone, there’s a whopping 11 million felines lounging around our homes, but for some owners having a cat is a bit like sharing your sofa with a serial killer!.