This is the terrifying moment a crazed woman attacked a couple with a Samurai SWORD after they 'refused to have a threesome with her'.

Swinger Aum, 40, used to have sex with the couple, whose nicknames are Air, 35, and his wife Note, 38, but they cut ties with her when she asked for a foursome with her and her boyfriend in Bangkok.

However, Aum broke up with her boyfriend a few months ago and the couple claimed she continued pestering them for a romp.

Footage shows long-haired Aum in a navy dress slashing a long sword towards the pair as they sheltered behind their front door in Phetchabun, Thailand, on April 4.

Speaking today, Note said: 'We kept quiet about what was happening for a long time, because we're swingers and we didn't want anyone to know. Society doesn't view what we do in a good light and we didn't want out neighbours knowing.

'We had some really great times with Aum in the past. But now she's crazy, she's desperate for sex and we can't help her. When she turned up with a sword we felt we had to go public and shame her.'

The couple said they had not complained to police about the alleged attack seen in the video. They hope that the woman will stop bothering them.

The husband added: 'We avoided her because she started behaving badly. She even went to our house and talked to our son just to harrass us into having sex with her. We've had enough.

'We did not report her to the police then because it was embarrassing but it had gone too far now. I just want her to disappear from our lives.'

Air claimed that the woman might have been secretly in love with them in the past and had become delusional when she was heartbroken a couple of years back.

He said: 'I felt she had a crush on me. I thought it was just a simple attraction but when she was heartbroken she turned crazy.'

The woman eventually left after Air continued to plead with her but he is worried she might return again.

He said that no one was hurt in the incident.