A woman was left on the brink of death with her face infested with maggots after her sadistic partner subjected her to unimaginable abuse, including burning her genitals, forcing her to eat her own vomit, and raping her daily for three weeks.

In June 2017, 34-year-old Nicholas John Crilley subjected the 21-year-old woman, who cannot be named for legal reasons, to "physical, psychological and sadistic violence" over a span of 23 days at his townhouse in Bulimba, Brisbane, the Courier-Mail reports.

Disturbing details from the torture were revealed after the former Commonwealth Bank worker pleaded guilty to a whopping 54 offenses, including grievous bodily harm, deprivation of liberty and torture.

The Brisbane District Court heard on April 21 how Crilley's assaults had left the victim so critically injured that responding paramedics initially thought she was dead.

Addressing the court, prosecutor Sandra Cupina recounted how he raped the woman on a daily basis, poured boiling water on her genitals, and set her on fire.

According to the report, Crilley used acetone, a cigarette lighter, as well as boiling water to burn her body.

Furthermore, the woman was made to sleep on the floor or outside the residence and forced to eat her own vomit and feces.

It also emerged that Crilley made the victim choose if she wanted to die with a gunshot or in a car crash.

"I've pummelled her so hard… she can't talk anymore," Crilley reportedly bragged to a friend.

The 34-year-old abuser then proceeded to "hide" her for five days at the Tower Mill Metro Hotel near his residence.

The report also stated that the beatings became so severe after a point that the woman's upper lip had detached from her face.

"He increased and escalated the methods he was using to harm her, boiling water then acetone then setting her on fire," Cupina said.

The torture came after Crilley repeatedly called her slut and forced her to confess that she was sleeping with other men while he was in prison.

The disturbing abuse resulted in multiple broken bones, deep lacerations to her face, burns to 46 percent of her body, and "degloving of the skin," per the report.

"The tissue on part of her face was so severely infected it was also infested with maggots," Cupina said. "If she had not been treated in the hospital she would have died."

On July 2, 2017, Crilley called the authorities and fled the Brisbane home where most of the torture had taken place.

Upon arrival at the residence, police found the woman barely alive and so badly injured that they thought she was the victim of an explosion.

What's more? The authorities thought she was dead until she let out a desperate groan.

Eight days later, authorities took Crilley into custody after a dramatic hot pursuit involving a number of stolen vehicles.

Meanwhile, the woman was placed in an induced coma at the Royal Brisbane and Women's Hospital, where she spent eight weeks recovering.

Cupina described Crilley's abuse as sustained, brutal, and vicious, adding that they increased in intensity over time.

"The horror (she) would have been experiencing is almost unimaginable," she said.

The victim told the court how the torture felt like "hundreds of small ants" were biting her.

According to her, the scars on her face have made her feel "unworthy of human interactions" and noted how strangers looked at her like she was a "monster."

She added that it took her seven weeks in the hospital to muster the courage to look at her own deformed face in the mirror.

"When I finally did, I was so distraught. I didn't look like myself at all. I was unrecognizable. My whole body throughout hasn't felt like my own," she told the court.

It also emerged that a little finger was amputated and her muscles had wasted away so much that she had to learn to walk again.

The woman, who is almost 24, is now forced to wear a wig after she lost chunks of her hair due to a badly burned scalp. Meanwhile, her teeth are broken from the relentless beatings she suffered at the hands of Crilley.

It doesn't end there. The report also stated that the victim's vision has been reduced due to burning liquids the offender poured in her eyes. Also, the bridge of her nose had to be removed as it had been shattered to piece during the assault.

Having said that, defense lawyer Malcolm Harrison said that Crilley was in a methamphetamine-induced delusional state throughout the devious abuse.

According to him, Crilley was hallucinating that the woman had been part of a drive-by shooting targeted at him.

"This is a dreadful and extremely serious example of violence against a woman," he acknowledged. "The offenses were sadistic in nature."

Nonetheless, Harrison noted that Crilley had called emergency services.

"That is probably the one factor in his favor," he said.

Nicholas John Crilley, who is scheduled to be sentenced on May 1, is facing life in prison for his crimes.

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