An Australian reality TV bombshell was arrested in a “catatonic state” for allegedly chopping off her boyfriend’s head – which authorities say they are still desperately searching for to give closure to his family.

Tamika Sueann-Rose Chesser, 34, a former “Beauty and the Geek Australia” contestant, was hit with murder charges two days after police found the charred and mutilated remains of her 39-year-old beau, Julian Story, on the bathroom floor of an apartment in Port Lincoln, The Telegraph reported.

Police made the grim discovery on June 17 after responding to reports of a small fire in the dwelling.

Tamika Sueann-Rose Chesser, 34, a former “Beauty and the Geek Australia” contestant, was charged with murder.Instagram/@tamikachesser
“I can tragically say that we have not recovered the head of Julian Story,” Detective Superintendent Darren Fielke told reporters Friday, noting a motive for the victim’s gruesome demise remains unknown.

“I can only imagine, and I want you to imagine, the grief this news is causing Julian’s family. Recovering Julian’s head to return it to his family so they can have a peaceful outcome, have a funeral and lay him to rest is a really important aspect for us.”

Julian Story, 39, was found decapitated inside a Port Lincoln apartment on June 17.South Australian Police
Police also released surveillance footage and images of a woman, believed to be Chesser, dressed head-to-toe in black and walking through the southern Australian city with three dogs.

The footage — with the woman’s face obscured — was captured just hours after the savage killing, which police believe took place around midnight on June 17.

Surveillance image of a person, believed to be Chesser, walking three dogs.SA Police
“I’m appealing to local residents to review CCTV or dash cam footage which they may have, which may assist the investigation,” Fielke said.

The model and actress was jailed after police found her in the backyard of the crime scene in a “catatonic and unresponsive state,” according to court documents obtained by the outlet.

She was also charged with disposing of human remains and assaulting a police officer.Instagram/@tamikachesser
The former reality star was also charged with disposing of human remains and assaulting a police officer.

“This is not her,” Chesser’s worried sister, Kiya-May, told Daily Mail Australia, explaining that her alleged murderous sibling has faced a “life of trauma and abuse” that has “fried her brain.”

Tamika Sueann-Rose Chesser on Beauty and the Geek Australia.Beauty and the Geek Australia
“She would never do these things.”

Chesser, who was initially refused bail, is reportedly being held under a mental health detention order.

She expected to appear in court for a committal hearing in December.