Ross Judd, 35, faced Melbourne Magistrates Court via video link from prison on Tuesday afternoon as he elected to send his case to the Supreme Court.
He is charged with two counts of murder over the deaths of Athena Georgopoulos, 39, and her partner Andrew Gunn, 50, found at a Mount Waverley property on August 11.
Judd was arrested later that evening, accompanied by two large dogs, at Westall Railway Station.
Ms Georgopoulos was five months' pregnant when she died.
Her mother Petty Georgopoulos watched remotely, with a prosecutor alerting the court that family of the deceased had asked to view the hearing.Â
"Your Honour can see on the link, members of family involved in this," the prosecutor said.
Magistrate Malcolm Thomas found there was evidence of a sufficient weight for a properly instructed jury to decide whether to convict Judd on the two charges.
Judd was supported by a French translator as he was asked by the magistrate how he pleaded to the charges of murder.
"I plead not guilty, thank you," Judd said.
His lawyer Angie Wong said fitness to stand trial will be an issue for her client as the matter moves to the higher court.
However, she confirmed he was not seeking a plea of not guilty by mental impairment, after the court was told in January he was being assessment by a psychiatrist for this.
Judd, who remains in custody, will face the Supreme Court in Melbourne for a directions hearing on March 18.