The green-eyed husband became obsessed with the idea that his 40-year-old wife was sleeping with her uncle after he dropped her off at home one day in South Africa.
Locking her in a bedroom the 45-year-old forced her to strip while pointing a machete at her and threatened to chop her head off if she did not do as he said.
The distraught said: "He had previously tried to cut my hand off so I was terrified.
