A deranged homeless man is accused of murdering a pregnant woman and savagely decapitating her partner – whose head was mounted on a spike – in a twisted attack inside their Australian home.

Athena Georgopoulos, 39, and Andrew Gunn, 50, were found dead Monday night inside their Melbourne home, which was graffitied with the phrases “Karma is not a menu,” “betrayal” and “Enough is Enough,” among others, in what police believe was a targeted killing, local outlets reported.

Victoria police rushed to the grisly scene after a neighbor stumbled upon the horrifying sight and screamed, according to the Herald Sun.

Athena Georgopoulos was five months pregnant when she was found dead in her Melbourne home.

“I mean, no one should have to come across what I saw down there,” Ben Scott-Sandvik said

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