This is the scary moment an aggressive pet demon cat pounced on its terrified owner.

Resident Sirayut Lhaksub was moving furniture in his home in Pathum Thani, Thailand on May 24 when the male ginger moggie suddenly attacked him out of nowhere.

CCTV footage shows the feline from hell chomping on Sirayut's leg unprovoked. As the surprised homeowner backed away, the cat lunged and continued its assault, chasing him behind the folding partition, and angrily jumping at him as he barricaded himself with a door.

The rampaging cat calmed down after being trapped behind the divider, but it had left Sirayut with numerous scratches on his legs.

Sirayut said: 'There might be multiple reasons for its behaviour, but we noticed it became aggressive after castration. It might have been spooked by the noise while we were moving our things. It's the third time the cat has gone berserk.'