A Brisbane woman has been sentenced to nine years in jail for manslaughter after brutally killing her rapist.

Roxanne Eka Peters, 35, fatally stabbed Grant Jason Cassar, 51, in the heart using a kitchen knife after he threatened to harm her daughter unless she submitted to more sex at her home in Capalaba, near Brisbane, in December 2015.

Prosecutor David Nardone told the court Cassar had broken into her home and asked to do a meth cook-up, according to 9 News.

A Brisbane woman has been sentenced to nine years in jail for manslaughter after killing brutally killing her rapist. Photo / Facebook
A Brisbane woman has been sentenced to nine years in jail for manslaughter after killing brutally killing her rapist. Photo / Facebook

After refusing to have sex with him and the threat towards her daughter, she ran to the kitchen to grab a knife and repeatedly stabbed him again and again, screaming "you don't rape me", the court heard.

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She then tied him up with rope, including his neck and dragged him behind her car for about a kilometre before dumping him in a ditch.

The next day, his body was found with over 61 injuries, including 10cm stab wounds on his chest.

The base of his penis and his oesophagus was also stabbed.

At Brisbane Supreme Court on Monday, Peters was sentenced to nine years in jail for manslaughter and a further 18 months after she pleaded guilty to interfering with his corpse.

With time served she will be eligible for parole in June 2020.

Justice David Boddice told the court Cassar's rape and humiliation of Peters, followed by the threats to harm her child, had been a "significant provocation".

"I accept the stabbing occurred in circumstances when you were enraged by what the deceased had done to you and was threatening to do to you again," he said.

Peters fatally stabbed Grant Jason Cassar, 51, with a blow to his heart using a kitchen knife at her home in Capalaba in December 2015. Photo / Nine News
Peters fatally stabbed Grant Jason Cassar, 51, with a blow to his heart using a kitchen knife at her home in Capalaba in December 2015. Photo / Nine News

"But she should have sought immediately help after the stabbing.

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"Instead you set about the process of callously disposing of the deceased body."

He said Peters had shown no respect for Cassar's human dignity.

"No doubt your rage continued to affect your attitude to him," Justice Boddice said.

Justice Boddice said Peters' upbringing around drug users, where she was subjected to sexual abuse, had induced the rage she felt when Cassar came to her home on the day he died.

However, Cassar's family have been devastated by his death.

"They will never recover from his death," he said.