Police have charged a man with a brutal double murder after a pregnant woman and her partner were found dead in Melbourne - the father-to-be's head severed and gruesomely mounted on a spike.

Homicide detectives probing an alleged double-murder in Melbourne's southeast are dealing with a house of horror after they discovered a man's decapitated head spiked on a stick.

Police have charged a man with a brutal double murder after a pregnant woman and her partner were found dead in Melbourne - the father-to-be's head severed and gruesomely mounted…

The bodies of the pregnant woman and her partner were found at a unit in Melbourne's south-east